When you strum a powerchord strings ring in the same manner.(same for separate strings)
Texture changes but it rings in the same way.
Perhaps this feel comes from something else.
Are you talking about the characteristic of the distortion itself here, or about the length of time it takes for the note to die out?
If it's the former then some examples would be useful to help demonstrate what words alone cannot convey.
If it's the latter then how loud are you monitoring things? And just how high have you set the gain on the profiles? Because that sounds like just normal acoustic feedback. The louder your speakers the more acoustic feedback you'll get, the higher the gain then the more compression as well as distortion which can lead to harmonic feedback (the note shifts pitch to a usually higher order harmonic), and if you have really bad pickups then you can get microphonic feedback (squealing with no control over pitch when you bend/touch the strings).