Whenever I run the game, black bars appear on the left and right sides of the screen.

The black bars have variable widths. The smaller one is 40 pixels wide, whereas the larger one is 171 pixels wide. The orientation of the bars is not affected by rotating the screen, the smaller bar is always at the top of the phone.

I am running this on a Google Pixel 3a, which has a 1080x2220 display. The phone does not contain a notch or punch-hole, it is just a regular display.

I am running the version of the game from the Amazon Appstore, not the Google Play Store.