If you happen to forget your headphones, you can borrow a cheap one from anyone, everyone has a few cheap ones at home they don’t care about. If this is not possible, you can buy very cheap ones in almost any shop. This saved me a few times from boring hour long train rides. I have a Sony BTW, so I have a small phone, 4 days battery life, a headphone jack, a SD card slot, no screen camera notch and front facing speakers. Unfortunately no one wants those feature so Sony mobile is dying.

I use Super Key + A and S instead of the arrow keys to be able to do it with one hand.