I think Intel has occupied the low-end laptop market. Nowadays nobody wants to build a laptop on ARM(except Apple). Chromebooks still have a large market, and they do not need any fancy GPU.
there are still plenty of arm models available. many of which are really just tablet hardware in a clamshell. which, so are many of the intel models if you look closely.
it isn’t so much intel occupying the low end laptop space, as commodity tablet hardware.