I have a Samsung Galaxy A21 and an Onn Roku TV and I want to screen mirror but I can't actually find ways to do so.
The only things that I could find are play store apps that make you have to go into the app itself, go to the browser and go on whatever I'm watching, click a play button, connect to the app on the TV then it plays, back out then repeat the entire process.
I don't think I can select an option on my phone to screen mirror and the process is pretty inefficient, so if anyone has any apps, apks or ANYTHING please let me know, if u have to please send me to other sub reddit that might be able to help.
Install Google Home and see if you can add the Roku to it. Should have the option to cast screen from Google Home.