2024 is the Year of Linux on the Desktop, at least for my boyfriend. He's running Windows 7 right now, so I'll be switching him to Ubuntu in a few days. Ubuntu was chosen because Proton is officially supported in Ubuntu.
I highly recommend Linux Mint (cinnamon) as an entry level Linux distro. It looks and feels similar to Windows, and it's based on Ubuntu, so it has a lot of support and compatibility.
Really liked Mint, unfortunately the kernel was not new enough to support my 7900 XTX when I upgraded GPU so I ended up switching to Pop_OS which works fine as well.