To control your Android phone with your PC, you can use apps like Microsoft Phone Link, Pushbullet, Scrcpy, AirDroid, AnyViewer, TeamViewer, and Vysor.
Activate Display Mirroring: Press and hold down the Home button on your remote, then select Mirroring. Cast from Android: ...
Android's USB tethering lets you reliably share internet from your phone, but it may fail sometimes. Here are some quick fixes to get it working again.