The good thing with a turn-based game is once you choose what you want to do, running the game at 30 or 60 FPS don't affect your performance in the game. By making the game more advanced on the graphics and physics side of things mean the game will not look old that quickly and it's specially important for a game based on D&D rules set which typically last about 8-10 years for every editions of D&D. Making the game run on a 4 cores Intel / AMD Ryzen CPU as minimum, make sense to me and let the game being able to make use of 8 cores CPU as a recommended setting and maybe more for the ultimate experience. So even if RTX 2060 users happens to run the game at let's say 4K 30 FPS so the weaker GPUs would just downgrade the resolution to 1080p/1440p, make use of the kind of latest RTX 2080 Ti even it means to run the game on that GPU at 30 FPS with everything graphics bells and whistles running. On PC, people can always choose to decrease resolution and frame rate but in 2 years+, the game will still looks great and will be able to make use of upcoming GPUs down the line.
