Years ago I put in hundreds of hours in Call of Duty Mobile and got really good at it. I even joined clans and eventually started my own clan.
I really liked it honestly, but I tried it recently and I seriously have no idea how I was so accurate at one point. Honestly it's not as uncomfortable as it seems once you find a good hand position, but there is definitely a high learning curve
I really respect mobile gaming. There are a lot of good and entertaining games.
They are really accessible to most of the population even in third world countries, and the communities are generally really nice. I've found them to be nicer than PC gaming communities at least.
It's really really incredible how good people can get at certain games and I like how a lot of their communities are run on mobile. A lot of the mobile gaming youtubers even edit their videos on mobile.
Games like COD Mobile and all of the SuperCell games are examples with great communities and games that don't have any ads. Sure they still be toxic, but it doesn't compare to communities like Overwatch.
There are also a lot of beautiful games out there. Mobile gaming is a now niche gaming space where the game has to actually be fun or else it won't grow all that much.
They can't just buy their way into being popular through the name of the IP or through beautiful graphics. The mentality of Art Style over Graphic Fidelity is still alive on mobile. Look at games like Monument Valley, Kensho, Pirate Outlaws, Rusty Lake, Pocket City, Mini Metro, etc. and you'll see what I mean.
It's also a great platform for indie games with low spec requirements.