Steam ID Finder extension - Opera add-ons

Carel URKT002XXL Internal Pipe Room Kit

Faceit Stats by Eloking is a Google Chrome extension that displays a users stats on FACEIT on their Steam profile.

How to Find Your Steam ID And Customize It - Make Tech Easier

FairSteam extension - Opera add-ons

Steam Game Finder : r/Steam

Extension for Steam · SteamDB

Nortec 259-7338 Steam Hose 7/8 ID (5 FT Roll)

Add On License

Steam Game Finder : r/Steam

I hope the Steam Deck does get a built-in browser, using a workaround you can load custom web pages but it's based on chrome 84, so things like the reddit media player