[Joel_Mckay]

Steam supports a lot more titles on Linux, but some will never work right (Cuphead takes some effort to get working etc.)

Best to check your favorites are functional before nuking Windows, or do the dual ssd OS boot option. =)

[whatevaa]

Cuphead works fine on Steam Deck. Valve did that effort.

[Joel_Mckay]

Steam did a lot for playable titles with Proton.

It is a lot less of a pain for Linux users these days, but still YMMV =3