Yeah, casual games definitely benefit from being on mobile. That group of players barely needed PCs in the first place and was likely first to switch to smartphones and tablets where touch control scheme makes much more sense. Publishers benefit from more streamlined in-app purchases there too so even if the sales volume was similar, overall revenue will definitely favor mobile platforms.
Wild Rift has 10% of active players LoL does. Death Stranding on iOS is just one more token deal Apple made to signal that they’re interested in gaming, but if past is anything to go by it’ll never get anywhere.