How do I find out who is requesting installation rights?

Question

linux

Good day! There is a Debian 10 system. Every day, some software asks for a password to install the application, I don’t know, it probably wants to update. Well, you know the standard root password entry screen. I guess skype, every day at 6 am. The problem is that because of this window, the gnome began to crash and the session had to be lost.
I'm not going to allow anything, how to find which application it is and disable all these planned installations?