Things I have done to prep my Steam Deck for playing games:

• Combed my library, especially my evergreen favorites and my high-priority backlog, for compatible games and installed them, including gigantic AAA titles my previous gaming computer wasn’t fancy enough to run.
• Leaned on ProtonDB to find even more compatible games than those verified by Valve and installed those too.
• Bought an SD card to triple my Deck’s storage to hold all these games.
• Installed EmuDeck to expand my library even further.

Games I have actually played on my Steam Deck:

• Vampire Survivors, a tiny three-dollar indie pixel-art game.

Regrets:

• None