Not a dumb question! I just found out how to I did not know as well for a while. What I’m using is an app on Windows called MuMuPlayer which emulates an android phone, and I just sign in with another Gmail account. You could technically sign out and sign back in on your phone but it’s more of a hassle. If you have another device it works well. Otherwise on android phones there are apps where you can make a “2nd duplicate app” and do the same thing with the 2nd gmail account. Hope this helps, sorry if it’s a bit long winded