It's really an implementation problem not a conceptual one.
Windows didn't implement it properly. The last time I tried it something as trivial as changing the screen brightness in tablet mode required you to open the Windows setting if you wanted to be able to use a slider. The quick shortcut was tapping the system clock, then tapping on a setting that would cycle through 20% increments IIRC.
Some apps like Bitwig Studio or even some Adobe apps IIRC change the UI depending on whether you are in tablet mode or mouse mode.
Windows didn't implement it properly. The last time I tried it something as trivial as changing the screen brightness in tablet mode required you to open the Windows setting if you wanted to be able to use a slider. The quick shortcut was tapping the system clock, then tapping on a setting that would cycle through 20% increments IIRC.
Some apps like Bitwig Studio or even some Adobe apps IIRC change the UI depending on whether you are in tablet mode or mouse mode.
See this video about Bitwig: https://www.youtube.com/watch?v=grM8exKd7mM