ES File Manager used to be an awesome option to move files back and forth between Fire TV Sticks and computers. But as ES File Manager got removed from the Amazon App Store, users have been left searching for an alternate solution that you can rely on to pass files to Fire TV Stick from Windows and Mac.

If you are used to this method, you can still install the ES File Manager by sideloading the program. But here's a lot easier and safer way than to do the sideloading of the software to the Fire Stick.

https://www.xclusivebyte.com/2020/12/how-to-transfer-files-to-fire-tv-stick.html

Easier way, get Google chrome cast, get a WiFi make sure all device are on same network. Go to your Google browser, select cast, you see your chrome cast device name. Choose your cast option and you see what you want on your chrome device connected to the TV.

From your phone, download Google home, and cast your screen. Make sure your phone is on same network with your chrome cast device.