My experience with 11 is that is just like 10 but with bad UI changes. 11 is stable and runs everything I need.
I think 11 is more about changing hardware requirements, requiring a TPM. The UI garbage seems more like an opportunity to try new things, they'll figure out that people don't like these new things.
Yes, the UI is why I’m not planning on upgrading. I prefer the square windows of 10 to the knock-off MacOS theme that is 11. If I wanted MacOS I would be running it
I personally don't like the lack of old things. Namely being able to drag to the taskbar. That's baked into a lot of my workflows, and I can't believe they removed such a useful feature.