The file, described as “a Port of the Official PS4 Remote Play App,” takes advantage of Remote Play, the PlayStation 4 feature that allows users to remotely control their PS4 from a PS Vita handheld ...
You can use the PlayStation 4 DualShock controller on a PS5 — but only when playing PS4 games. However, you can use the PS4 controller with any PS5 game while doing remote play on your phone or tablet ...