Hi, @Basil_Cat 
That's a good tip (thanks!), but I think there is a less drastic way to get rid of "Ubuntu Pro" (formerly known as "Ubuntu Advantage") advertisements in the terminal, which is by typing the following command:
sudo pro config set apt_news=false
Do you agree? For additional context, I posted the following reply about that command, also here in the Ubuntu MATE Community, back in November 2022, in another topic ("Announcements in MATE terminal") that was started back then by @mickee (Brian Bogdan):