HI
From what I have read on the premiere pro forums. This seems to be a Program issue. Adobe has been known to use high resources even it PDF read does that is why I changed.
Most of the forum members had higher GPU model than the 1660 and still have this issue. and some had i9 gen CPU Many users have had this issue after updating the program.
I would suggest you updated drivers to your GPU. this maybe be the cause of the black screen. There is a premiere pro 22.2. Not that would solve this issue.
Link for drivers, click the download service and select your GPU model and OS
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