I just screenshotted one very stupid Finder bug and one very ugly reduce transparency version of control center just a few posts back, and I've posted and commented multiple other posts about atrocious text legibility (including the menubar, control center, the dock, and Music app).
As a UX designer and instructor, I would have marked my students down for nonsense like this (does that sound like an insult? Because it's just a fact). You shouldn't have to endure UX, you should enjoy it.
I've used OSX since Jaguar at least (and OS8/9 before that!) and this is the most phoned-in I've ever encountered an OS update from Apple. I learned UX from great Apple designers in the Bay Area, but if I were still teaching UX, I'd be scrubbing a lot of the Apple examples from my lectures at this point, because they don't show represent good UX. Legibility is fundamental UX design.
macOS has always had bugs, weird UX/UI, especially for new releases. However for me, as a long time user, it's been increasingly clear for years, but especially with Tahoe, that macOS is an afterthought for Apple.