Oof. I had a friend who did pen testing. Only she never abbreviated it. I didn't hear the abbreviated form until much later. I think she just liked saying "penetration". Even after a couple kids at that point, she was pretty young. But I always thought it was cool what she did.
It's a shame Proton is going this way, since their product offering could rival Google. They could have partnered with Graphene, perhaps, to make Android more secure. Not sure if, as a Mac/iPhone guy, it would make me more likely to switch (though, the Fairphone 6+ caught my attention), but it would be good for Android.