Because the hardware is just so, so much better. I would absolutely prefer running Linux, but nothing comparable exists. Running yabai for tiling window management isn’t great, but it’s ok.
This used to be true, but no more. There's a lot of great hardware built for Linux or officially compatible with Linux. I'll just list a few comparable to MBP 16" since that's what I'm most familiar with:
* StarLabs Starfighter
* ThinkPad X1 Carbon Extreme
* TUXEDO Computers InfinityBook Pro 16"