I completely forgot undervolting was a thing, woke up on Friday and decided I should undervolt my 1660Ti because this summer is so hot the poor thing was going into the mid 70s playing something like Hunt Showdown.
The default I think was 1.05mV for 2010MHz core clock and I now have it stable at 925mV for 2010MHz.
This pretty much lowered my temps while playing Hunt by 10 degrees, maxing out at 66°C. Playing Apex was even better at only 62°C and when moving between POIs when it wasn't a big open area I saw it drop to 58°C which I was really impressed with.