FWIW same issue here, none of the main menu options do anything. It's a Pixel 2 XL too with 6GB of free space and plenty of RAM; positive it's not a hardware issue.
Android Version 11, Security Update Oct 5 2020 and Google Play System Update from Aug 1, 2021 (latest available updates for the device; no new updates to come). Game version 0.18.
Real shame, was hoping to have something fun to play on my phone. Device is only 4 years old, real shame if support only exists for latest and greatest yearly devices for whatever reason. :(