Hi.
You faced this issue:
No, quite the opposite. WebDAV has disadvantages compared to FUSE. For example, the problem you mentioned, but also the fact that WebDAV can only handle files up to 4 GB.
WebDAV is available on all systems by default and does not need to be installed as it is part of the OS. For this reason, it was decided at the beginning of Cryptomator’s development that the virtual file system would be made available via WebDAV. And even today WebDav is used by default if no other virtual file system can be found (somehow Cryptomator has to mount the vaults). Later FUSE (WinSFP) and Dokany were added as options which have to be installed separately.