This is for file sharing, while Syncthing is for file synchronization. While you could use Syncthing for file sharing as well (and I have used it for that before), it’s definitely more complicated to use, and requires a bit more setup.
How about using M$ Edge on Linux? /s
Seriously though, one of my friends uses Edge on Windows, Linux, and Android. I still couldn’t wrap my head around his decision.
You like eating eggs, don’t you?