Not at all! I use this app and it works fine for me on my Pixel 3XL, your mileage may of course vary; https://play.google.com/store/apps/details?id=com.lexa.fakegps
I eventually managed to fix it by turning on Betternet, a VPN service. The game isn't officially out in my region so I have to run it through QooApps. Maybe the game noticed that and refused to let me enter or something.