yes, the community installer of Windows X2Go Client doesn't contain x2gokdriveclient binary yet. I can't tell you why, apparently Mike didn't have time to build it or maybe he just forgot about it. Looks like x2gokdrive isn't really important for community yet, but some of my "enterprise" customers are using it productively with Gnome 3 and plasma since 2019.
I haven't had time to package it yet.
So far, I've packaged the x2gokdrive server part for some RPM variants, but haven't touched the client yet.
It's mostly low-priority, given all the other things that need attention (and fixing).
Mihai