Lenovo might have changed its mind about releasing a SteamOS version of the soon-to-be-announced Legion Go 2. The handheld is expected to run Windows out of the box, but an official image has shown it running SteamOS. Hence, Lenovo might release the handheld in two OS versions, as it did with the Legion Go S.
Not sure what you want to talk about. The Legion Go has detachable “joycons”, and one of them serves as basically a pistol grip mouse with an optical sensor on the bottom. Those “side buttons” become “front buttons” in this mode.
Ah, I forgot about that. Makes sense now, and thanks for explaining 👍