The grip part, and HDMI probably wont work (and the "grip" part may make it useless on Gemini as well...!). And the way charging is implemented on the Gemini will probably prevent that as well. But it is compact, and should work otherwise...
This or that seem a better fit for Gemini given its limitations, are more affordable and readily available. The sad part - any of the hubs sharing this design blocks the headphone jack.
But the hyperdrive USB-C port has a 3.5mm jack - so wouldn't you be able to use that if it covers the one on the Gemini?