2 workarounds to use a PS5 controller with the PS4

Even though the PlayStation 5 DualSense controller is not usually compatible with the PS4, there are a couple of workarounds ...
AOL

How to use a PS4 controller on your PlayStation 5, or with the PS5 Remote Play app

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 ...
Play Station Universe

Sony Reveals PS Portal Is ‘The Most Widely Used Device’ For PS5 Remote Play: ‘The Community’s Response Has Been Overwhelming’

Sony’s Takuro Fushimi has revealed during a interview with TechRadar that PlayStation Portal has become the most popular device for PS5 Remote Play, surpassing PC, PS4 and PS5 in the process.
techtimes

Will Your PS4 Controller Work on PS5? Here's Short Explainer About Its Compatibility

For gamers, backwards compatibility is always a "green" flag since this will allow them to play games from older consoles. It has been a cornerstone of console gaming for many years, to say the least.