There's a meme oft-posted and oft-repeated but I feel it is relevant now more than ever before:
Also this article:
https://www.tomshardware.com/news/pc-gaming-not-dying,39205.html
People can complain about new platforms or they can embrace the market and see it as an opportunity. If you want casual gamers then throw your hat in the mobile ring. If you want less competition then go for the console crowd. If you want to make the best games possible as amazing works of art that will live on for decades to come, go with PC. ^_^
I'm somewhat more concerned with the unregulated gambling that goes on with impunity in mobile, console, and PC games alike; whether free or paid doesn't seem to matter. If that type of bullshit can be completely squashed (likely through regulatory means) then the market will naturally contract and things may calm down a bit.
Honestly I feel there's a certain niche that the market has yet to fill. RPG games that take less than 4 hours to complete, are cross-platform on PC & mobile, and have no additional purchases beyond paying for it initially, and tell a full/complete story without any sequel-baiting bullshit or half-assed endings.
Respect the time of your target audience and you shall reap the bounties within.
March 2021 EDIT: I refuse to censor or alter any of my posts just because you dislike what I have said. I have been polite and refrained from breaking any rules so you gotta clean up the mess you made by yourself.