asking as a noob now, can I use this to set a static ip address on my computer?

I don’t even know the difference between router and computer.

How have you installed the yt-dlp app?

all I know is I update executing yt-dlp -U, not using apt sources

upgraded from 12.11 to 13.0. I just deleted some old kernels and freed some space in the boot partition. Could this be the reason? not enough free boot space?