I use it to transfer large video files and 40000+ images from my phone to PC it transfer fast then normal copy between systems

I connect my PC and phone in tethering mode and open syncthing on both devices

I get 30mb+ per second transfer speed

I use Voyager it's simple and good ui I think it's in beta testing for apple devices

https://testflight.apple.com/join/nWLw1MBM

Try logseq it's better