3060ti here with zero issues.

I bought it and tried it with my 2080. Between 40-45 fps. Then I pirated it and it runs at 50-60 fps.

I had Freesync set to ON on my monitor and it caused a ton of flashing like a strobe light was on. When I turned it off it went away. Any idea what that could have been? I'd like to be able to use it.

My 2070 super has been running everything smoothly on High at 3440x1440 (CPU is a Ryzen 5600X, game installed on an M.2 SSD). I haven't been closely monitoring frames, but I cannot think of a single instance where it's noticeably dropped, which for me usually means 50+ fps for games like this. I may even test running on some higher settings, but I've done very little tweaking/testing.

I did, however, install a mod from the very beginning that lets me use DSLL, which likely helps a ton.

3090 & 5800X3D and runs like a charm, easily staying above 60 fps with all settings at ultra 1440P. 1 CTD in 20+ hours of gameplay

3080 here with zero issues. Running on ultra everything I get 50-60 fps consistently with dips down to 30 once or twice briefly in really busy areas. Also at 2160p resolution too.