In Steam’s settings you can add a new library folder on the larger drive. The compatdata will install to the same library folder that the games are installed on. You’d have to move the games to the new drive as well. That’s the simplest way to do it

My Dad convinced me to try it, as a way to learn more about how computers work (ie without Windows). I installed Ubuntu and didn’t like GNOME, but once I saw that all the same programs I used on Windows were still available on Linux, I knew it was worth finding the right distro. I used Linux Mint for awhile because Cinnamon DE was nice, but eventually I needed a more up to date version of something (I can’t remember what) so I installed Arch with KDE instead. I’ve used it ever since.