Comment by ssl-3

If simplicity is the goal, then sure: Maybe spinning up a custom part can become useful.

But simplicity isn't always the goal. I have a throwaway vape here with a color LCD screen that plays full-motion animations.

To be sure, that's not necessary at all. But this functionality does exist, and people do buy them.

IIRC, they're said to use a 48MHz Cortex M0 part. More information here: https://github.com/ginbot86/ColorLCDVape-RE