So I solved it on the GemiBook Pro by going into the BIOS. I tried to find a solution that didn’t require going into the BIOS cause it scares me, but I don’t think any other solution exists unless you have the button for it on your keyboard. The reason being I think its a setting within keyboard hardware itself, so the Windows OS is completely unaware if Fn locked or not.
If you’ve never gone into the BIOS, its not that bad actually. Simply power on your computer and when you see the “CHUWI” logo press and hold the Esc key. This will take you to the BIOS screen. Here, you do not have access to the mouse, so you’ll have to use the arrow keys and the Enter button to submit. Your BIOS may look different if you don’t have the Chuwi GemiBook model. Tab over to the Advanced tab, go to the Function Keys Mode, and change it to Special Function Mode. Tab over to Save & Exit and then your Fn keys should be locked on your next boot.