Hi @anon22602904,
From what I can see, RealVNC is only available in the AUR:
$ pamac search realvnc
realvnc-vnc-viewer 6.22.207-1 AUR
VNC remote desktop client software by RealVNC
realvnc-vnc-server 6.9.0-1 AUR
VNC remote desktop server software by RealVNC
And unfortunately, while the pamac manager can install from the AUR, the AUR is unsupported. Please see the following for morre info:
However, try and start it from the command line, and provide any output here.
Edit:
After a quick bit of searching, I found its AUR Page where, indeed, it looks like you’re not the only one. But that’s all I can tell.