Found out how its done:
cd into src-capacitor folder: npm install capacitor-plugin-name
then open file at src-capacitor/android/app/src/main/java/MainActivity.java
there you will:
import com.plugin-name
and
add(plugin-name)
make sure neither your server nor your quasar client server is running otherwise you’ll get a bunch of ‘mkdir’ errors*
then while remaining in src-capacitor you will run “npx cap sync android”
go back to your quasar client and run “quasar dev -m capacitor -T android”
make sure your server is still off and update your gradle on Android studio
afterwards you will find the new plugin inside Plugins object in “@capacitor/core”
you should be set to go. You’re welcome fellow newbie!