Don't just sneak "console gamers" in there, that's disingenuous when the GP didn't say anything about them.
Anyways, statistics aside he's right. Mobile games aren't the same thing as console/PC games. They are, almost without exception, thinly veiled monetization machines designed to be almost fun but not actually fun, just so you will pay money. They are literally designed to be less fun as a business strategy. There are games on real gaming platforms which are just as exploitative and poorly designed, but they are the exception. With mobile games they are the rule.
Given that the nature of the markets is so wildly different, it's perfectly reasonably to say "no, these are different things".
You also seem to be thinking of Candy Crush style games, whereas I was pointing out that in recent years some of the most popular mobile games are FPS, RTS, also things like Honkai: Star Rail and Genshin Impact and other action games. On the other end, desktop games have also become monetization machines in the same fashion - Fortnite, Apex, CS:GO, OW, Minecraft, Roblox are massive money-making machines. Any judgement about mobile games being 'less fun' or 'less serious' is entirely subjective.
This thread started because someone though Steam stands as the universal entrypoint to gaming in general, which is absolutely far from the truth.
Anyways, statistics aside he's right. Mobile games aren't the same thing as console/PC games. They are, almost without exception, thinly veiled monetization machines designed to be almost fun but not actually fun, just so you will pay money. They are literally designed to be less fun as a business strategy. There are games on real gaming platforms which are just as exploitative and poorly designed, but they are the exception. With mobile games they are the rule.
Given that the nature of the markets is so wildly different, it's perfectly reasonably to say "no, these are different things".