Nobody posted this yet because the folks here are mostly Samsung/Pixel/OnePlus fanboys.
Back to the phone, Honor is pushing interesting things. But this slider thing seems to be just a "me too" attempt after the Mi Mix 3/Oppo Find X.
I'm more interested in Honor's attempts on the mid-range market, where they are one of the few OEMs pushing ample storage (128GB) as standard while the rest are still on 32GB/64GB standard.