Hello,
(...) it worries me a little it's still stuck on Android 7(...)
Well, if you're so keen about not only running after the "latest" stuff, but even after "coming" stuff, why don't you switch to iOS and chase the allways latest-bestest-modernest IPhone?
Sorry for the sarcasm, but I really don't understand those "worries". Why is this a problem for you? In my opinion this is complaining on a high level. Do you actually know what to do with the latest and coming stuff?
I have tablets running Android 4.4, and until a few months ago I even ran a Smartphone with Android 2.1. The tablets I am still using on a daily basis, and they work perfectly.
Ask yourself what you actually want to do and what tasks you are going to use the device for. If it fits your needs, fine, if not, you have to move on. But actually, I'm afraid that if you decide that Android 7 (for instance) isn't good enough for you, I see you running after something not existing but assumingly "perfect" for ever. So again, what do you expect Android 8 to do for you that Android 7 can't?
And finally I'd like to point out that many Gemini users (and fans) are people who until recently were still using a Psion 5 (mx) or even a Psion 3a with great success, and those are gadgets from the 90s and 2000s ;-)
Kind regards