I have Time Machine backups working from my laptop to my #FreeBSD NAS (Samba), but using the same share config doesn’t work for my wife’s — looks like macOS Tahoe (26) causes breakage around that; I haven’t upgraded but she did.
Annoyingly not been able to find the right combination of Samba config options to make it work. It still works to the Synology at least so backups still working, and there must be a way to do it.
Out of brain this evening though.