Took my e-gr out for its first run yesterday. A proper UK gravel route with a bit of everything. I'm running a 48t up front (it's a bit big) and 11-50 on the back, which is out of spec. I needed to run the b-screw all the way in, and very careful manage the limit screw to not throw the chain. Once dialled in, it shifts incredibly smoothly - better than my red AXS on my road bike, truly. Sometimes it shifted so quietly I wasn't certain it had!
As others have mentioned the left lever is completely wasted. It can't be used for anything. That would be my number 1 update request.