A framerate of 30.30 has become common the past couple years. What is it about the number 30.30 that is significant? Why not an even 30, for example?
30.30 isn't a standard frame rate. I think you see it a lot because mobile phones (especially iPhones) only &quot;target&quot; certain frame rates, they don't necessarily perfectly deliver them.
https://www.provideocoalition.com/understanding-iphone-framerates-for-shooting-editing-distribution/
Interpreting a 30.30 frame rate video as 30fps won't cause significant issues unless the clip is longer than a few minutes, in which case you may have lip-sync issues with the audio vs the video.