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: Respect the Flag?: Find me a Maori flag and I will burn it. (posted 2025-05-31 at 18:45:40). I do podcasts too!. You can listen to my latest podcast, here: OJB's Podcast 2025-04-24 Go Winston!: If a politician want's to empower the majority view then I'm all for it..