Most of your questions were already answered. But i can sum it up for you:
If you experience problems with Dokany or WebDAV, you can try WinFSP. The drawback of WinFSP is, that you cannot mount into a folder. Additionally, you need to reset the custom mount options for every vault by deselecting them.
To use it, you need to download and install WinFSP manually. Afterwards, restart Cryptomator, open the general preferences and select “FUSE” in the virtual volume tab.
The usage of WinFSP is still not offiial, but we recieved positve feedback about its performance and stability.