There are many variations of the LS-22. Micomsoft sticks uses some . Old SEGA panels on T-13 cocktail & 18″ 1986 City era used some. They were LS-22 with early ls32 gates and pre 32 gates too. The ones I saw didn’t have ls22 in relief and gate insert type varied in color and version (example: green actuators instead of translucent white, white subgates instead of classic blue ls32 style that would appear later, older ls32 compatible white gate insert as seen in earliest ls30 rotary sticks (slightly different outer profile/ shape) ).
Micomsoft pulled a funny trick by reverting the shaft direction and actuator-spring-retainer assembly, basically upside down in some of their “XE” series stick cases (for Famicom, Megadrive, PC engine and MSX). The programmable XE SFC stick for Superfamicom has a variant of that but its switch plate is more ls32 style despite same spacing as ls22, actuator differed a bit too etc.
SNK “AES” classic square and bean sticks don’t use chinese clones, it’s all Seimitsu, unlike modern SNK gear which is 100% chinese. Even the microswitches were seimitsu-format since they were Tokai Mahjong switches with PCB terminals (MM9-1&2 types are basically MM9-3 switch with pcb terminals instead of 0.110″) .
Exar used in every arcade stick they sold not labeled “Sanwa Edition” some LS-22 style joystick. Innovation (DC stick with orange buttons … ) and its kissing cousin clone companies (IMP for example with its 328 II intelligent Power Stick and EX9800MD) used LS-22 style sticks though those could be chinese copies, it’s unclear (cases are chinese made and clones of AES square sticks with slight mods). Try Electronics (parent to Exar tbh) Royds EX stick model uses a real OEM LS-22, but it uses omron switches instead of panasonic/matstushita like several other console ls-22 versions, body is translucent white like OEM% seimitsu models are (recently Seimitsu been selling one off special editions of ls40 & ls56 in that precise color, just like old OEM models).
Honest brand has an SNK AES square stick clone but I never checked the joystick in that one (SFC XE-3).

Funny no one mentions LS-22 & LS30 introduced the LS33 & LS56 switch spacing since it’s exactly the same. Plus the fact that if you use a switch plate such as the one seen in SEGA cocktail panels & Sigma sticks, you can use any LS-32 compatible gate insert, including pre 32 models with same gate format (more on that later with model numbers). you can put LS56 style gates on LS22 joysticks since the switch spacing is EXACTLY the same, but you need to mod either the steel plate and or the ls22 base. The locating pins on ls56 gates correspond to one corner of a switch while sigma and ls22 & neogeo aes plates have stamped locating pins and no holes to screw a ls56 gate in .
one can easily mark hole centers using a jig and the switches themselves and put threaded M3 inserts in a LS22 body to then be able to put any ls56-sels70x gate for example. Sigma switch plate is the best since it has a central hole that’s wide enough (ls32 style) and doesn’t need to be drille dout unlike SNK aes stick switch plate (it will aboslutely need to be widened out if one wants to use classic seimitsu gates or inserts as mentioned above, since AES joystick plate aperture is the smallest).
AES plate can take LS32 gate inserts or LS56 gates but needs modification via drilling & threading (& center aperture widening whcih is mandatory or else you’ll hit the stell plate edges and never the plastic gate mentioned above. I posted about this a long time ago).

Something else worth noting is ls22 pivot is interchangeable with ls56 same for spring retainer, actuator (needs to be shortened) , spring (same format), switches (ls60 Omron V short hinge type works and found in some OEM ls22 versions, or ls22-30 matsushita AH7 type short hinge or panasonic am5), shaft same format too except lower portion on whcih actuator -srping assmebly is fitted which is evidently longer/deeper on ls56 and variants. Seimitsu reverted to omron V only lately, since am5 panasonic stock is depleted for real (supposed to happen in 2017 but short hinge stock was more important than mediulm hinge stock). ls32 and ls22/30 & ls56 pivot bearing have exactly same curvature/diameter, difference is the shaft hole size. some pre 32 models used the same pivot format too, but Seimitsu remains silent on those for whatever reason, they want everyone to think ls32 was the first joystick they produced when it’s clearly not even the first in the given format the ls32 adopted.
Last but not least, SEGA hss-0136 virtua stick for Saturn uses a genuine ls56 in some versions, but it has a short shaft similar to ls33 length for the upper size and similar to ls62 in design (no stepped junction to house a shaft cover), all being reminiscent of LS22 & variants shaft style. Royds Ex stick also has a cover-less short shaft without stepping at the junction.

Let’s not forget that only the japanese version of the official SEGA console sticks ffor Megadrive, the “arcade power stick” (1st 3 button stick) and the 6 button stick “arcade power stick 6B” models, both housed a variant of the LS22 version seen in neogeo square stick (instead of the rubber membrane garbage josytick seen in western “overseas” versions of said SEGA sticks), except it has a couple changes like the base screw support design changed shape, the base itself is solid black with an oval profile and actuator is like the one seen in micomsoft sticks in design. switches are usual ah7 matsushita short hinge also.

Tengu.

The ASCII sticks using practically the same joystick as in NEOGEO AES square stick were the ASCII stick II turbo for famicom & msx, namely as-3399-fc & as-5599-mx models.
The steel body early (Sigma style to be honest) AS-2088-fc by ASCII for famicom and the version for msx as well used a completely different compact joystick by Seimitsu though, much older than ls22 and is a variation of cocktail cab oriented compact sticks Seimitsu did for SEGA and a couple other arcade companies like Nichibutsu amongst others (all much smaller in spacing and format than ls22/ls30).