Playback is improved with the experimental driver, don’t need to skip forward 10seconds to start audio playback and FF/RW buttons work. Though PiP seems to pause the video and require a skip forward once out of PiP to start.
The Deafult driver(new name for Lab?) actually seems to be working better. FF/RW buttons work, no frame drops, only a slight audio delay when starting video and no need to skip forward.
Pip is silent(not sure if intentional) but coming out of PiP, audio resumes on its own.
Will update with any other info as I use the drivers.