Changing my mobile device to a new one - what are the best steps to move configuration and files?

Hi,

I need to change my mobile device and so move the Joplin Android app configuration and files to another file.
My current mobile device is synchronized with my PC only and all files are stored on both devices thanks to the Syncthing app, so on Joplin the synch option is: “File system”.

What do you think are the best steps to follow in order to loose anything :)?
Thanks