I primarily play RetroArch on a PC, but I’m considering purchasing an android phone for portability. Can you transfer saves between a PC, and android phone easily? Is it possible to set it up to automatically updates saves between the PC, and android RetroArch save folders?
In-game saves (*.srm) should go between pretty reliably. Savestates work sometimes. You can set up a sync directory using an external program. IIRC, Dropbox doesn’t work, but Google Drive, Syncthing and others will.