My impression is that macOS itself is mostly as solid as ever. But the built-in apps are, with a few exceptions, just not built for people like me anymore.

I'm basically fine with this for now. It means that as a poweruser I get a rock solid OS on which I can run all the third party software I need to make it suit my needs.

Still I feel as though macOS is slowly degrading, whereas Windows has been slowly improving. Even basic stuff like window management is better on stock Windows these days than on stock macOS. macOS had such a big lead 10 years ago, but it's been decreasing over time for a while now. I'm still going to buy a 16" MacBook Pro as my personal device when they come out later this year, but I feel like at the current rate there's a decent chance it might be my last Mac.