The NVIDIA driver hasn't changed since 2021-04-02 so it was probably a different package that broke things. Most likely the proposed kernel version 5.11.0-14.15-generic you are running. Less likely caused by the Xorg 2:1.20.10-3ubuntu7 update.
** Package changed: xorg (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1923390 Title: NVidia driver updates installed "manually" by system did not recognize my RTX 3060 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1923390/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp