Reading this a few questions come to mind that you do not need to answer.
-How is your general stress level?
-Are you neurodivergent?
-Do you have a neurological condition that makes you ultra sensitive to sound?
If the fixation on quiet is driven by any of the above, you may never find peace unless you address those issues and get yourself the right tools and supports.
I live with a permanent migraine, so I can be quite sound sentsitive.
I currently live on a major intersection of a major city, but my apartment is so soundproofed that I can only vaguely hear the violently screaming baby in the bedroom right above me, but only at night, and only ever so faintly. DH can't hear it at all.
This is an early 70s construction highrise building with dense concrete walls, and I'm 20 stories up. If I open windows, I hear a lot of ambient city and car noise, but this high up it's like white noise. With the windows closed, all I hear are my animals and air purifiers.
My other house is out in a very remote area of Newfoundland. The ambient level of noise there is much lower than the city and is basically just the ocean, which is much nicer white noise, but I'm far enough from the water that I can only hear it if I'm not doing anything. It's astonishingly quiet...unless someone is around and makes noise, because, well, humans.
So it will depend on your particular type of noise sensitivity. Mine is most triggered by comparative noise. When I'm more stressed, I'm better with low ambient noise and no notable sounds than I am with silence and the occasional chain saw or barking dog.
For high stress times, I'm better off in the low city hum in my concrete sky box. If I'm low stress, I'm better off in the exquisite quiet with occasional human noises.
It's important to really understand what elements of sound bother you and then mitigate that.