Running the beta of Big Sur. I have installed the latest version of Cryptomator and FUSE. I am not able to reveal any vaults using FUSE, either an existing vault or one I newly create. I can reveal/create using WEBDAV.
According to FUSE the latest version supports Big Sur. Not sure at this point which program is the real issue. If anyone else is seeing this issue and found a work around please post here.