They really need to do much better about how they communicate this to users.

Developers are unable to opt out of the system and Valve will just put a "verified" tag on a game with zero input from a developer.

Valve needs to set proper expectations of who to be mad at when a game breaks on the Steam Deck if the developer themselves never pledged support.

Most users don't understand what an OS really is or how a game works on the Steam Deck (SteamOS) instead of Windows.