But that means that someone else’s server is used whenever you leave your home network.
I’m pretty sure syncthing does NAT hole punching, so someone else’s server is only used for initial connection, after that, your data goes directly to your devices.
I mean, Syncthing is much more than that. The great thing about it is that it works no matter where you are - home wifi, over the internet etc.
But that means that someone else’s server is used whenever you leave your home network.
I’m pretty sure syncthing does NAT hole punching, so someone else’s server is only used for initial connection, after that, your data goes directly to your devices.
Your detail is correct, but I feel like the point is - it would not work if there would be no server