Are anyone up-to-date on the status of the syncthing-fork on Android, following the drama of catfriend1’s sudden disappearance and the less-than-trust-building behavior of researchxxl? Did they rebuild that trust? Was it forked again by someone more trustworthy?
Maybe it’s the endpoint Syncthing uses for NAT traversal or fetching the relay list. Other than that I’m not sure but you could ask the developer, they respond to questions quickly.