Plugins and libraries with a L/GPL v3 application

Lets say I license my app (native app, not web) under GPL v3.

1. does this allow my app to use proprietary/closed source or non GPL compatible libraries (excluding OS APIs which i know are allowed)
2. does this put any restrictions on (dynamically linked) plugins written for the app?

What if i were to license it LGPL 3 instead? does that change the answer for the 2 questions i asked? does change change anything else as well?

My understanding is that for GPL v3, it forces the app to use GPL compatible libraries and forces plugins to be GPL compatible too, but seems like too big of a restriction given how popular GPL v3 is and how its used by big apps like signal

Thanks in advance!