@Lee Frances: I'm sorry to hear of your frustration. If you have downloaded an update via Settings > Software update, then the update notification will remain in your drop down panel, as well as the Status Bar at the top of the screen, until the update is completed. If you would like a bit more control regarding when updates are downloaded, please head to Settings . Software update, and toggle off 'Auto download over Wi-Fi'. From this point onwards, you can manually check for updates via Software Update > Download and install, as well as Settings > Biometrics and security > Security update. I hope this helps.
There used to be a section in the Developers settings for this.
Activate the developers settings and take a look.
Daily Driver > Samsung Galaxy s²² Ultra 256Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
I have no affiliation with Samsung.