idk if google allows you to disable this notification bcs i cannot get microg as a replacement it says invaild package even when its disabled the apps work fine (idk if it has to do with google play services being installed by default) and i dont want roms rn bcs the phone gets important updates
idk if this is right to do but i removed google playstore (replaced it with aurora store and bcs it needs a account to use as well) and switched off google services (according to my debloater app google play services can bootloop the device which i dont want)
I suspect you may have gone at it in a bit of a brutal way that I'm not sure is entirely effective, but then again I guess in this community there are better judge for that than myself...