It didn’t work like that for me. I must admit I didn’t dig deep to clearly see what is the problem. So my setup had a Windows Pc, a Raspberry Pi 5, and an Android phone, sharing a folder which had notes.

Whenever I save any changes in Windows machine, the android used gets updated without much issue, but the Raspberry Pi caused conflicts. When looked at the time stamps they were different and it looked to me like the Raspberry Pi 5 Syncthing is sending the old file as new one, because of the save time.

It read somewhere the issue is with how time is handled in Rasberry Pi. So I disabled the Raspberry Pi Syncthing and went on, because that was not really needed.