I don’t really see what you’re seeing. I don’t have any issues with Tahoe at all. Or maybe I just don’t think about the problems – being a beta tester for several years and running Tahoe since last June has probably made me a bit too tolerant of clunky UI.
Reminds me of the saying: "If you’ve seen it, you can’t unsee it’…", so I don’t want to look too closely. 
Another thing that I miss (that I didn’t think I would miss) – the Launchpad screen for organizing your apps into folders. Pinch-and-launch. Now, the Launchpad is gone, replaced by something that is a hybrid of a Spotlight window and a simple listing of all apps. There are predefined “tags” for categories, but no way to customize these the way you want – no way to add tags, no way to group apps yourself.
“If it ain’t broke, don’t fix it” is a good adage worth heeding.
Folks here may already be aware of it, but it sounds like “glassOS 26” was the responsibility of Alan Dye, head of Apple’s UI design team for the past decade until he left for Meta in December. He’s being replaced by Stephen Lemay, a highly respected designer with a 25+ year tenure at Apple. While I doubt things can or will change instantly, I do believe he will gradually right the ship and steer things back in the usability direction Apple has (until recently) been known for.
John Gruber has some great thoughts on the whole situation here: Daring Fireball: Bad Dye Job
My semi solution has been to move most of my work into the terminal. I use fewer gui apps which reduce’s my frustration.
The most annoying thing is that I’m mostly in dark mode and most gui’s and especially macOS have horrible dark modes.
Change for change’s sake. But if they didn’t, people would complain about “same ole.”
Amen brother! I CANNOT read liquid glass stuff without severe eye strain.