WebDav.org

[stokito]

The official WebDav.org site has plenty of links:
http://www.webdav.org/projects/

One of them is
https://www.davexplorer.org/

It's interesting because it supports many WebDAV extensions
On github there is some repo with some improvements of the old project https://github.com/ellipsisnl/DAVExplorer

It also has news and there mentioned some other projects.
One of them is for example
https://github.com/woboq/p300

The guys company made this tool for MacOS to mount
https://ocsmount.com/macos-webdav-mount.html

It looks like the webdav.org belongs to https://en.wikipedia.org/wiki/Jim_Whitehead_(computer_scientist)
It would be great to ask him to refresh the projects ppage or put a link to the repo

[stokito]

https://magnumbytes.com/ https://github.com/mikekazakov/nimble-commander for macOS

http://rei.to/carotdav.html for Windows, not FOSS but free. Use .NET