Funny to think that the developers who haven't paid for the ability to remove the splash screen are also the ones likely to have optimized their games poorly

That's because very often mobile games are not developed with performances in mind or when they are, they'll use everything the device can give, often pushing it into throttling mode, because mobiles are not made to be run at sustain load for a long time.

Mobile is the most constrained platform to develop on if you want to actually have an optimized game, especially when supporting most Android devices.

Unity games run horribly on desktop.... how they think its legit a good mobile engine is beyond me

Like, Valheim runs like ass, all things considered. Battletech takes up like 50gb for a game without more than a couple of cutscenes and a camera that sits in the sky, and takes forever to load. Graveyard Keeper -- a PIXEL ART 2d game -- is for some reason made in Unity, and it takes way too long to load a couple of megabytes worth of textures