Well it didn’t “brick” your system. You probably simply got a black screen because the method of installing the latest driver failed. Mint is the wrong distro for gaming on NVIDIA for now.
I highly recommend Nobara for fedora based or CachyOS for Arch based ( gnome or KDE Plasma). They take special care on things like GFX drivers and auto setup things that might be missed. Also both of those DE’s leverage the latest NVIDIA drivers taking advantage of the latest fixes.