kind of..
a "AMD GX-420GI SOC: quad-core APU" the one with no L3 Cache, in an Thin Client and 8Gb Ram. old Laptop ssd for Storage (128GB)
Nextcloud is usable but not fast.
Yes, a g4 or g5 i think, had to fix 5 Capacitors, did a good job at 4, the 5th i had to extend with some wire, not ideal. It boots but USB is not recognized / i asume it does not get enough power. I have a Note on my Phone homescreen to "fix the imac (again)" since June
try "Flesh and Blood (1985)" its nasty