Garry's Mod Dark RP runs great on Deck! Back buttons work nicely for the extra keybinds. : r/SteamDeck

Customize Your Steam Deck Buttons With This New Product - Steam

Some verified games that have major issues that makes them

Steam Workshop::bips' gmod stuffs

GMOD on Deck - Does it work? : r/SteamDeck

Garry's Mod is a Blast on Steam Deck!

Steam Community :: Guide :: Swamp Cinema: The Full Experience

Garry's Mod Running On The Steam Deck. : r/SteamDeck

Steamdeck and controller layouts? : r/OverPrime

Customize Your Steam Deck Buttons With This New Product - Steam

News - Steam Community Announcements

Steam Workshop::VanossGaming

News - Steam Community Announcements

What game features gets you unproportionally pumped when you think

I tried modding the Steam Deck & almost lost my sanity - Dexerto

Steam Workshop::Awesome Hands