There’s a wider issue here in that one of the security errors that Nextcloud provides involves setting up files in /.well-known/ (Security warning: Your web server is not properly set up to resolve “/.well-known/caldav” ; https://docs.nextcloud.com/server/14/admin_manual/issues/general_troubleshooting.html#service-discovery) and yet these files are flagged as errors when upgrading the Nextcloud software. Nextcloud devs need to decide if these files are necessary or not! It shouldn’t be up to users to have to manually move the folder in order to complete an upgrade and then have to move the files back.