No thanks. Downgraded to 8.2.3 years ago and going strong with a custom launcher. Has absolutely everything I need and nothing that I don’t.

This was the guide back then, possibly still works. [0]

[0] https://florisse.nl/shield-downgrade/

I just removed updates from whichever app it is that handles the launcher, all ads gone, still get to be on latest OS version :)

How?

On android you can, usually, go into the settings, go to the app section, go into the specific app you wanna downgrade and, if it's an app that comes preinstalled and can't be deleted outright, you get an option to "remove upgrades" or some such thing.

this. anything above 9.x has been shit for me.