Every PC I've ever used automatically detects and adjusts resolution to the display you connect to it. Even Nintendo Switch will detect when it's docked and automatically adjust the display resolution. But on Steam Deck you literally have to adjust the display resolution for every game, every time you switch displays.
Since getting the SD I have shoved my PC into another room to displace the heat (until I get a mini-split) and I just stream from it to the Deck, whether docked at my desk or on the couch or on the big screen. But this really complicates that process unnecessarily.
This has also not been fixed in Nobara or Chimera.
What's the limitation there?
And then again you'd know better than anyone that hardware has its limitations for a reason, so maintaining ANOTHER database like proton just for lightweight games that can run 4k sounds pretty excessive when they're mostly focused on common issues like booting games. Can't solve all github issues no matter how hard one wants to try, things take time