I’m not sure on how much you’ve done so far on your channel but it’s at least something to do and more than what I’ve done. My real guess upon why people would prefer to play mobile games there as opposed to PC or console games is due to cost: XCOM ain’t cheap that’s for sure, the genre is obscure and not as appealing and easy to understand, marketable and etc. to different markets. I reside in an Asian country but even here from what i can tell is a mix: many play and are more familiar to PC games but its the usual like (as you pointed out) Dota 2 and Counter Strike. For mobile games they usually play PUBG, Mobile Legends and I think I see an audience for COD as well. Console is something like Tekken 7 and the FIFA games. Then again, I don’t really interact with mines all too often so it might be different, but you get the point. Obviously not everyone plays those games only, that’s silly, I’m sure most play different games in their own free time outside of the public. Their income isn’t as big as say, those residing in America, so I can’t fault them to a degree.
I like that the video and audio of the game itself is not bad despite the 30fps lock, which some may take issue with but I see it as just a way to hide imperfections of the performance. The audio balancing is also quite good as you could’ve easily have problems of one being more noticeable than the other.
As for my critiques, and it may come across as harsh which I do not intend it to be, from the little I’ve seen I think you can edit out the audio whenever you are not speaking because I can otherwise hear the breathing from the microphone which the audience would not want to hear. If you are using a video editor software once you finish talking maybe a fade away or a straight cut can help to reduce the nagging problems. Although maybe that’s because you attach the audio to the capture itself. Perhaps there is a separate way to record just the microphone recording and the gameplay, but it might not be possible perhaps. And the commentary itself is very lacking: I do get that you would be focusing on the game as opposed to just talking to yourself for 30 minutes on a microphone, which is OK by me but I feel that you can add some more topics to spice up the video, otherwise it’d be just a glorified gameplay video. I’m not sure if this in response to those talkative annoying gaming commentary channels all those years back with the screaming and stuff, but you can be a more chill person and just talk about other things: maybe something that just came out of Netflix or the situation around you that would be interesting for a discussion. If you do struggle with long intervals of talking, or don’t like the segments, you can cut the audio AND the gameplay so that it can keep it at a good pace without stretching the video.
Anyway that’s all I have to say really. Best wishes.