This sort of thing used to bother me back when I took Windows seriously.
It's been a while since I used Windows as a daily driver, but I did oscillate between W10 and Arch for about half a year, and the Arch mentality creeped into Windows. I ended up adding a context menu to Explorer so I could paste images on my clipboard directly to a the folder I had open. I had to create keys in the Explorer portions of the registry.
If I could do that, I'm sure you can root around in the Start Menu parts of the registry and rip it out.
I wanted to use a tiled window manager and my dot files for continuity purposes. The Windows apps I need to use are stuff like anyconnect and Teams.
Of course I still have to use Windows for work and even a few edge cases at home. But otherwise I've been quite happy since I swiched to Linux as my primary driver.
https://github.com/Raphire/Win11Debloat
Nothing has ever reverted after an update for me, so it’s a one-and-done thing. Ironically, afterwards Windows 11 has fewer noticeable ads than my MacBook which still continually pushes Apple services/shows/etc in settings/push notifications.
The only setting that I’ve ever seen sneakily disabled in recent years is the Edge default search engine but that's out-of-scope for Win11debloat.
Oh, and have you heard about OneDrive?