Deck Compatibility Display от Juha-Matti Santala

A game's Steam store page has a ton of information. For a Steam Deck owner, a crucial bit of information is whether a game is verified/playable/unsupported but it can be hard to find amongst all the information and panes.

With this extension, you get that information directly into the toolbar (if the extension is pinned to toolbar) without having to find the right info at the page.