There's only one improvement that would bring me back to Yamaha.
Their "AI Fingered" mode... since Y2K, pressing a single key sounds a unison (bass and 1+8). What were they thinking!?!

To get a major chord, you have to also play the major third above the root. This often requires repositioning your whole hand. It's inconvenient for fast chord changes, compared to the system used by other brands.

Doubtless some players have gotten used to it the current way. But Yamaha could create more flexibility with an option: "Single note produces unison" or "Single note produces major chord."

If they do this, I'll buy a Genos! But Yamaha are so stubborn and arrogant... I'm not holding my breath.