Comment # 16 on bug 1199973 from Stephen Rose

(In reply to John Serock from comment #15)
> (In reply to Stephen Rose from comment #14)
> 
> I was able to reproduce the anonymous login issue. It looks like a patch to
> gvfs may be needed:
> 
> https://gitlab.gnome.org/GNOME/gvfs/-/merge_requests/143

This now appears resolved.  I updated to latest available samba 4.15.12
packages and gvfs is at 1.48.2-150400.4.6.1
I can now log in to anonymous shares without any issues.