Yep, I have this bug. Sound is glitchy/crackling and distorted during heavy engagements, especially with explosions.
The distortion is recorded in gameplay recordings and is present no matter what device I watch the videos on.
It's independent of headset. Tuning the volume settings in-game or in PS5 system settings doesn't fix the issue. Neither do any of the other settings (Wartapes, default, etc. Doesn't matter.
My PS5 is hooked unto a 2018 LG 55UK6300PLB tv which sends an optical-out signal to my Marantz receiver. The fact that the bug is consistent in recordings on other devices makes me think this is a compression issue.