>>logic_+(OP)
Taking better advantage of a display is nice but imo the really exciting part of desktop mode is the planned integration with Google's Linux Terminal app (i.e. 1st party linux VM support). I have a Samsung DeX device and while you can get a basic dev environment working easily it can be really cumbersome to make it comfortable to use and integrate with your normal tablet workflow. Being able to install full-fat linux apps and run them in a window would be a complete game changer.
>>enrage+O4
Rumor is Samsung won't support Google's Linux Terminal (at least for their existing phones) since their Knox conflicts with the Android Virtualization Framework :-(.
Honestly I'd like to see Windows 11 running under this as well, but that seems incredibly unlikely.