Yes, I have the exact same problem.
To me it seems to only happen when using headphones. All I use is basic wired headphones from Samsung galaxy, but have tried a couple of others and all are the same. Tv audio seems fine, I think.
I literally just came offline from F1 2020 cause I cant hear well enough to play, just constant intermittent crackles pops and distortion.
I vowed not to buy any of this brands F1 games again as every year its problems, and i stupidly bought this and unbelievable its the most riddled one iv had, to the point I just cant play.
Do Codemasters pay attention on here? Serious question, Iv never used this forum.