It may have to do with many of the new Mac (Apple-authored) apps being Catalyst apps. Not sure. I feel that Catalyst is a bit of a "stopgap" solution, so it may not be as thoroughly optimized as a more permanent solution. I'll bet something new comes out, once the entire line is switched to MX chips.

For myself, I just got the new M1Max 14-inch MBP, and it's quite nice.

I had to remove my Thunderbolt docks (I have a range of docks, including ones purported to be "Thunderbolt 4") from the video chain. I have found that the computer seems to lose track of what is where, if I have a dock in the loop.