https://extensions.gnome.org/extension/1319/gsconnect/ is a fantastic implementation of kdeconnect which allows you interface with your android phone from your linux desktop.

I had some issues configuring it on Fedora as I was previously using kdeconnectd so gsconnect defaulted to the next available port (1717).

To resolve this I removed kdeconnectd (yum remove), uninstalled gsconnect (rm -rf ~/.local/share/gnome-shell/extensions/gsconnect@andyholmes.github.io), wiped the prefs (dconf reset -f /org/gnome/shell/extensions/gsconnect/)  and then reinstalled gsconnect.

Test it’s listening on 1716:

lsof -Pi | grep 171

And sync with kdeconnect android app.

(Also ensure your linux machine isn’t firewalling the ports).