Hey @gomisensei today I bought a Sony Dualshock 4 Wireless USB Adapter.
It does all the wireless pairing in hardware and appears as a plugged-in USB controller, so you don't need to setup Bluetooth or ds4drv or anything special in software at all.
Just plug in, push the adapter for 3 seconds to enter pairing mode, press PS+Select on the controller, and you're good to go.
This worked with both my controllers, the one which works over RetroPie Bluetooth menu, and the one which otherwise needs ds4drv.
If you have multiple controllers, you need one adapter per controller. I'm going to buy another one soon but I expect it'll work fine.
Hope this helps you!