Possible to pair Xiaomi ZigBee accessories to Aqara G2H Camera Hub?

Has anyone tried pairing Xiaomi ZigBee accessories like the Switch (small circular button) or sensors (like temperature, motion / body, door / contact, ...) to the Aqara G2H Camera Hub?

AND super important question, do those Xiaomi accessories get then exposed to the Homekit?

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The Aqara app only shows possibility to add Aqara devices but I know it's possible to add Xiaomi devices to other Aqara hubs. Also, heard it should be possible to add the Xiaomi sensors to G2H, just it's hard to find any information on this. Xiaomi sensors are much cheaper. My main concern is the Switch I guess as that I can get for half the price of Aqara one.

Thanks!