I'm using an non official bluetooth dongle with my DS4 controller.
The X360 emulation works 100%.
The DS4 emulation not so much.
I need the DS4 emulation so you I can use the PS4 Remote play app but it has broken R2 and R1 buttons.
This two triggers must act as buttons and as triggers at the same time to work properly and they only respond as triggers atm.
Because this is how they act with an official PS4 bluetooth dongle.