Welcome to the forum, smashfire.
This error message is referencing a C:\users which is Windows and not Linux Mint. Notice the slash points the opposite direction of what you typed for root.
It seems you are installing games to your Windows partition which is /dev/nvme0n1p2 and according to your screenshot only has ~39GB free.
Statistics: Posted by SMG — Mon Nov 27, 2023 5:45 pm