It sounds like you’re talking to some rather odd people with a strange combination of hyper devotion to Apple and high tolerance for features simply not working. I have seen plenty of people in the first camp though not nearly as much these days as I did back in the early 2010’s, but the second camp is strange to see given that’s a huge cornerstone of why people buy Apple (“it just works.” Or even the perception that it just works).

Screenshare works perfectly fine in my experience and I’m not really sure what you’re talking about with printing, but everyone’s experience differs I suppose