I've been daily-driving desktop Linux for close to 15 years, hadn't touched Windows in about 10 years, and then got a job a few months back that requires Microsoft-everything.

"Primitive" is the word that comes to mind every day. There's a steady drum-beat of aggravation and missing features and bad design decisions. I lose probably close to thirty minutes of daily productivity to the Microsoft tax.

I've been sincerely surprised at how bad it is.