Global FRTC control is back in Adrenalin 2020 21.3.1 Driver for RX5700XT -> R9 390X.
This is great news.
It works with Radeon Chill do you can set FRTC = 59, Chill min FPS = 30 Chill max "FPS" = 300 and run an RX Vega 64 Liquid on BFV at 4K Ultra with ~ reasonable 59 FPS 4K Experience with Vsync off.
Now all Radeon Team need to do is adjust chill behaviour so that you can hit more than 55 FPS with those settings with keyboard only input.
Please mark this as the correct answer.
Thanks.