I am not 100% sure as I don't use both platforms.
But I believe it is because the Mac and PC use different server\folder\file paths to each other.
Even with teamwork I think? (I don't use that either).
So the libraries will show in the Library Manager (greyed out as unavailable) because their folder path is not recognised.
I assume you would also have trouble with hotlink file paths as well if you use those.
Barry.
One of the forum moderators.
Versions 6.5 to 27
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11