Since this exodus (year of the linux desktop has been promised every year since 1998) has not yet happened, there is likely an actual reason (or several) that people choose to stay on Windows.

I use both, but prefer linux to stay behind the scenes on my servers. Windows has been a solved problem for me for the past couple of decades. Here's a random 100 day uptime screenshot that I found from 2017, https://imgur.com/a/PRp9L50. These days I usually shutdown more often to not waste power, and my NVMe makes bootups instant anyway.