Sometimes a lot of excess notifications might appear on your Mac (often effectively the same one hundreds of times). Closing them one at a time can take a long time; sometimes they seem to go on forever. A restart usually fixes this, but you can also fix it with one simple terminal command...
Run the "Terminal" app (it is in the "Utilities" folder, in the "Applications" folder). Type: "killall NotificationCenter" (without the quotes). The notifications should disappear. Quit from Terminal.
The process starts itself again quickly, so real notifications should start appearing.
I usually write a blog post about once a week. The latest post can be viewed here: Celebrating Brilliance: It's time to get back to celebrating brilliance rather than mediocrity. (posted 2025-03-20 at 11:57:47). I do podcasts too!. You can listen to my latest podcast, here: OJB's Podcast 2025-03-13 Embarrassing Nonsense: That might get the message across that we are sick of this embarrassing nonsense..