Hello, I just reinstalled POP!_OS because last time, I installed Brave and got error message each time I navigate on POP_Shop also when I entered this command: sudo apt update -m or sudo apt update (doesnt remember well), I got this error message:
*W: GPG error: https://brave-browser-apt-release.s3.brave.com focal InRelease: The following signatures were invalid: EXPKEYSIG 4FE13824E3FFC656 Brave Software <[email@example.com]
and some other error see here I posted my problem on the POP OS forum:
I use POP_OS 20.04 LTS (version NVIDIA)
Thanks a lot!