Try changing the default resolution, scaling option, or the game resolution. Might be something here.

https://www.wikihow.com/Force-Steam-Deck-Resolution#:~:text=The Steam Deck will automatically,1080p while in handheld mode.

Could you list the other 3 games?

Does it only happen in WitchSpring? That game specifically might change the resolution.

“Hah, in your face! Lata suckas!!!”

Steam deck LE - 04 BOE, no dead pixels or issue.

Im curious if the issue with removing the Micro SD do it doesnt break in half is still present in the new OLED?

Has anyone else received an invalid tracking number for UPS? Not too worried, but was curious.

Report the deck as stolen to Steam support?

Yes, just make sure, both Steam Decks are updated to SteamOS 3.5 before replacing the SSD.

https://old.reddit.com/r/SteamDeck/comments/17ubwgv/steam_deck_oled_will_boot_from_a_normal_steam/

I dont see why not, Its what im planning on doing.