Here are my specs,
Windows 10 Professional 64-bit (up to date)
16GB (8x2) HyperX Fury DDR3 1866Mhz RAM
AMD FX 8350 stock clocks
MSI Radeon RX 480 Gaming X 8G (19.5.1)
MSI 990FXA Motherboard (latest BIOS)
Wolfenstein The Old Blood and the previous game is experiencing a lot of performance issues with AMD drivers, as can be noted in the screenshots attached in the top-right corner with the Steam FPS counter.
This FPS drop is present even at low 720p settings. Furthermore, all of these screenshots were captured in the first few levels of the game (30min into the game). In addition, as most of you know, this game renders with OpenGL.