I forgot to ask also: is WebDAV just as slow as smb?
Does any of our file managers support it?
HiDrive only supports webDAV on a free plan, SMB comes with the paid options.
I did check the respective documentations of FileBox and Hamsterfiler, didn't see SMB or WebDAV mentioned, but obviously that doesn't mean it's not there.

EDIT: Just found out Wizard Mounter only mounts NFS or SMB.
Can you recommend anything for WebDAV?