Barely any. Problem is that those game applications install on my phone rather than SD card. So they consume quite a lot. I don't do much mobile gaming.
PS2 was the greatest thing in terms of console gaming that happened to me. I hate the fact that they have disabled the multiplayer. It's unfair completely.
But let's be honest, if a PS5 comes out then by all the means sometimes a PS10 will. Will PS5 keep the multiplayer running on those conditions? Because PS2 is down already ^^
One of great ways I have noticed for gamers to earn money is by advertising something on their videos/streams. My buddy had a nice deal for $300 to advertise some website. It's a good amount of cash tbh.
I listen with headphones, but obviously I sometimes use dynamics. Depends on what situation it is. Headphones are comfortable, but my head hurts sometimes because of them.