

Syncthing/Syncthing-Fork. Simply the best cross-system file synchronization app. Peer-to-peer, no cloud storage.
Scrcpy (Screen Copy). App that mirrors your Android phone to Windows. When I switched away from a Samsung phone I lost the ability to run an app from my phone on my PC desktop. This restores that.
Are you using syncthing-fork on android? If I remember, the primary app discontinued android support, so someone else took it over.
I use it routinely for thousands of files. It’s easier than digging out a USB cable.