My opinion, take it for what it’s worth.
If you are looking for the absolute quiet 22, you have to put in why. Reason being is terminal ballistics matter at the distance you want to shoot at.
Having a ported barrel and shooting subsonic CCI or CCI quiet will result in different ballistics than what is printed on the box. You’ll have to chrono it and do the math. Personally I hate barrel porting, I’d rather SBR.
Once you do all the testing and math to get “quiet” you may realize that you are no better than a precharged pneumatic, as far as terminal performance goes.
Also a quality PCP will be able to put 25 rounds in a single hole at 10 yards. You will never be quieter or more accurate than a quality PCP. Never. However the energy of a power burning charge will be greater. So it’s a combo of power, accuracy and noise. Which ones do you want?
However if you tolerate more noise, the foot lbs of 40 grain 22 will be better than an air gun.
What I use. I have a heavily modified 77/22 with a 20 inch Shilen barrel and suppressor. With CCI quiet I can still dispatch pests at 25 yards. The gun is very accurate with federal match but much quieter with CCI quiet (of course), but not as accurate.