why is it that the >"firmware framebuffer is pretty much useless"

[mocore]

(excuse my general ignorance wrt to pi hw )
i read that

* Adjust config.txt for the 32bit versions. For console HDMI support.  (The firmware framebuffer is pretty much useless anymore, this is a workaround to use the builtin kernel simple-fb)

i ask hear in case any one more knowledgeable finds the time to provide more depth / insight  ?

as there was only one page of results searching the forum for "firmware framebuffer "

nothing seamed particularity relevant  ....