UI has really gotten down in the last couple of years.
Reduced information density
Abuse of paradigms we learned in the past (e.g. blue button to accept, links for decline) to make us accept harmful settings
Notifications for just about everything
Popups inside of the app
Adding buttons for functionality that's not included in your subscription, which show the nagscreen once you click on it
UI upgrades which add nothing (see all above)
Removal of agency. I don't want the upgrade, nor do I want to be reminded in 3 days.
A changing UI sounds absolute hell to me. When I was growing up I broke my Windows installation a lot by changing settings. That's how I learned.