You have a misinformation about correctly working version of rclone for webdav remote.
Look at the page WebDAV , in the upper right corner we see v1.39, but in reality webdav connection doens't wort with it. In my case I can't connect webdav to my vender by oidc bearer token. I got error of auth.
I hope, you can do smt with it. Thank you!
Best wishes, Mikhail.