As an IT admin for work I downloaded a copy of Windows 11 on the official release date. I did a full clean install on a secondary laptop. I then switched to this laptop as my daily working computer to see if I would have any issues running the software we use for the business. Other that a few UI changes like those you mentioned I have had no issues running Windows 11. I have now made that my official work laptop and redeployed the old one to a new user. As part of my job I support about 200 small remote business offices that supply there own laptops and wanted to be ready for when someone purchased a new laptop with W11 installed. The new laptop users have not really noticed the change and all the programs they need to do their jobs work fine.
Did you do an in-place upgrade or clean install?
RE: To upgrade or not to upgrade: Windows 11 two months in