The issue with the yamaha motors on Giant bikes is they have a ratcheting engagement system that has 52 points of engagement.
This means that even if you have instant engagement silent hubs (I have Onyx hubs on my '23 Reign e+) the best you can obtain is 52 points of engagement and the ratchet noise equivalent to a 52 poi hub. Fwiw the dt swiss upgrade is 54 poi.
But in this case that would be 52 poi of the crankset compounded with the 54 poi of the hub... which I don't have any idea of how to calculate the sloppy engagement created by this.

The best engagement hubs on the market can't correct the inherent janky crank sloppiness of this drive system.
I enjoy my reign e+, but this is a huge shortcoming from Giant that I am surprised nobody talks about.
And I have yet to see any other brand that has this engagement shortcoming.