kdeconnectd can help you manage sound volume, change song, also you can add more command for remote lock/unlock screen or turn off computer (laptop):

sudo dnf install kdeconnectd

Add to firewall:

sudo firewall-cmd --zone=public --permanent --add-port=1714-1764/tcp
sudo firewall-cmd --zone=public --permanent --add-port=1714-1764/udp
sudo systemctl restart firewalld.service


on Android phone you need install KDE Connect and than you need pair devices to access all features of remote management.