I installed it.
I really wanted to love it but it’s bad.
It’s very busy and the proportions in the Settings app are awful. It’s
on the “cozy” side of things (as opposed to “compact”). This means you see less options at one time on the screen and have to scroll more around the OS to get where you need to.
As for accessibility… It’s hell. Have a look: https://imgur.com/a/6ZTCStC
How does it look if you enable "Reduce Transparency" in Accessibility - Display settings?
I don't doubt designers spent a lot of time researching it. It still reads like an incredible amount of carefully crafted bullshit.
The more the design of things "evolve", the more I appreciate designs that simply don't.