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?
you mean changing the resolution of the games when you switch from playing in handheld mode to on an external screen? that would have to be done by each game, most games save their graphics settings and only re-autodetect resolutions when they fail to set the one in the config
there is not a standard protocol for this, I recommend just using full screen windowed when available as that tends to act as a maximization to the screen