uninvited squatters

One group is the beeps-and-chirps that continually bug me when I don't wanna be bothered. I go to messages: nothing, go to notifocations: nothing.
The other one  is features or so called apps that cannot be UNINSTALLED, one example being Galaxy AI. Not only do I want to uninstall it I want to BLACKLIST it so it can never be installed unless I ask for it at least 3 times in a row. This last bit BTW should apply to ALL components that are not otherwise required for minimal operation (flip5)!