Proximity sensor not working after connecting default headsets (earpods)

Hello,

I have an iPhone 11 with iOS 14.01 (the problem was on 13.2+ too if I remember correctly)

The problem:

If you connect your headphones (the ones that the iPhones comes with in the box) the proximity sensor is not working anymore and the display gets pressed while its in your pocket!

Therefore you call random people, you hang up active calls, add people to the call, change/pause music or the most annoying somehow the iPhone gets locked by randomly pressing the display because the iPhone asks for face id, fails (because its in your pocket) and then the digits get pressed, unlock fails and your iPhone gets disabled for X minutes.

Just to pull it out of your pocket after listening to music to find out your iPhone has been disabled for 15+ minutes...

Here's how to reproduce it and test it:

Headphones are not connected:

Hover your finger over the proximity sensor and lock your phone, now while the finger is hovering over the proximity sensor try to press the display, the display will remain dark and the phone will not wake up, if you remove the finger from the proximity sensor the display wakes up on touches (as expected)

Now connect your headphones (I only have to ones that come with the iPhone):

Play some music for example, lock the phone, and hover your finger over the proximity sensor (now the phone should think its in the pocket and should not wake up on display touches)

Now touch the display, the display wakes up (should not wake up).

Also if you are on a call with the headphones connected, swipe up to minimize the call, lock the phone, (hover your finger over the proximity sensor) the display is still responding to touches when it shouldn't!