Do All FC Stacks Work with DJI O4 Pro?

I am not sure if all stacks will work. You need power, which could be an external 9v bec if there isn't an onboard bec that is 9v.  And as long as you have a UART available, it should get OSD and arming data from that port once you set it up in Betaflight.  I used an O4 lite on an analog f411, so I added a external bec. 

kayy, thanks