X2go is a custom build script from AUR and unsupported.
Note: X2Go is not compatible with all desktop environments. You can check X2Go desktop environment compatibility first. Compatibility is especially important if you want to connect to an existing Xorg session. In addition, X2Go does not support GLX 1.4 which is required for many graphical applications, including Firefox. Making those work requires further hacks.
– X2Go - ArchWiki
The concept described → [root tip] [How To] Install Raspberry Pi - VNC over SSH work everywhere.
Using tigervnc from the official repo is supported.