The only struggle I have with smaller screens is that my usual workflows (which are based off Blender or Krita) don't work on them and equivalent/adjacent apps are way more effort to workflow than I want to put in otherwise my travel kit would have been an iPad Pro rather than a MacBook (I always get the small Cintiqs so I can lug them around easily with me, if I ever win lotto I would get a big Cintiq to use as a third screen XD and also I think Apple really dropped the ball and lost a great opportunity with the iPad Pros).
Do you have similar struggles? :D
I can imagine that being a source of frustration for sure! I do prefer the bigger screens like you but having a large screened laptop becomes cumbersome to carry around so I tend to just stick to my desktop. Winning the lottery though would sure help being able to get the necessary upgrades to the gear we need! We can hope!