Yea. I have the same issue and it isn’t fixed yet. I’m using nothing phone 3a and nothing OS 4.0 rn. The mic is suck here cuase of the forced noise suppression. And for some reason it cannot be disabled in most of the apps.
According to my observations, it can be disabled only in dictaphone (u can choose mode in the bottom of the app) and durning WhatsApp calls (3 green dots in upper right corner). And only durning calls. It doesn’t affect voice messeges for some reason. Thats why sound is so suck.
I also checked some preferenses in adb. I think these prefrences are the culprits of this problem:
[ro.boot.vendor.qspa]: [true]
[ro.boot.vendor.qspa.audio]: [enabled] ← Voice Focus is forced here
[ro.boot.vendor.qspa.speech]: [enabled]
[ro.boot.vendor.qspa.nsp]: [enabled] ← Noise Suppression
U can’t find them in the preferencee, so there is no solution for this problem yet.