what is new is clear. What has been removed or broken vs Big Sur?.
I had a lot of problems with my not-old laser printer in Big Sur and almost had to buy a new printer.
it was Apple who broke the way the printer driver worked, can expect all the printers to have a new driver every year when Apple makes a new “release”.
By the way, Windows 11 is a new version of a OS, it does not happen overnight, nor is releasing a new OS every year, neither is Apple, Apple is just putting a new set of apps and cosmetic changes to the previous year OS and breaking stuff.
For example, the humble TextEdit app always opens in the same location of your screen, no matter where you moved and closed it. Same ancient code, new skin, etc.
The notifications UI is terrible, the small X to close any notification is frustrating because it dissapears and reappears and you have to “chase it” to make it appear. Etc. Not bad, just a mediocre OS with very limited customization options. Windows 95 was king. I don’t favor brands, just whatever I find more to my liking.