Learning-wise, I’d say starting on PC makes much more sense. You’ll have a much easier time developing and debugging the game, as you can test right on the device you’re using to create the game. In terms of it being profitable, it’s very likely that your first game won’t be. I’d look at it as a learning experience first and foremost that will enable you to make profitable games in the future.

I’d say it doesn’t matter. While on desktop people generally pay more for a single game I’d guess that expectations are higher as well.

In the end the most important thing for your game is that it is fun. Then people have to know that it exists. Everything else is not as important. People have to want to play your game.

If your concept works better on mobile, do it on mobile. If your concept works better on desktop, do it on desktop.

Just make it fun and complete it.

And your first game will probably not be such an astounding success like my own debut Diarrhea 4.

Don’t rule out using chatGPT to help with coding. You still have to review every line to make sure it’s not gibberish if asking to generate code, but in general, it saves countless hours and will absolutely become a valued asset to your team.

What would be the most profitable path in terms of learning and, if possible, generate a modest income?

GPT might have some insights for you there as well.

I’ve seen someone with 0 coding knowledge make a functional, albeit rudementary, first-person shooter on PC, only using chatGPT.