Kyoto Shogi is the featured variant for June 2024.
Although a play history isn't easily accessible, and none exists on GC yet, it does exist on LiShogi and PyChess, and commercial sets are available in the real world, which implies that the game has a history of being played in the real world.
It is playable via online correspondence via LiShogi or LiChess, and can relatively easily be programmed in Game Courier, although no one has done so yet.
It has a fairly strong computer engine in Zillions, and a weaker one available in Ludii.
It's page is a good example of what a high-quality Chess Variant page should look like.
Kyoto Shogi is the featured variant for June 2024.