Upgrades can be applied from the application/user data partition, but they stay on the user data side and that's why the best you can do is to uninstall upgrades and disable. Apparently most the providers have gotten better about only including an application stub now that doesn't include the app binaey/data, so usually uninstalling upgrades leaves you with a ~12kb application stub/placeholder.
"Hey, did you know the store across the road from you right now accepts Google Pay?"
No shit. 99% of Australian stores accept it since it works just like a credit card.
On my phone I receive status-bar notifications a for: new personal e-mail, RSS updates for specific topics, F-droid updates, battery level, storage space critical. The latter two are the only OS notifications I can't seem to suppress.
After all the majority of public (which the sales are aimed at) will enjoy those notifications.
But, software engineering folks who have 'rubbed over' UI's for years time, will probably hate