The other possibility is that you are re-romanticizing city life. Grass is always greener. Perhaps an extended vacation of a month or two back in the city will give you fresh perspective or the certainty you need.
Like you alluded to, we tend to romanticize what we don't have, but I think the mistake is in attaching too much existential meaning to it, like we might get it wrong and fail to be happy. If you do it earnestly, with intentionality, it'll never be a period of failure if you end up changing your mind. Maybe you eventually find that an occasional trip to the city is all you need to satisfy the city dweller inside you. Or maybe a retreat every year and regular hiking is enough nature to calm the soul.
I can yearn for nature and crave a coffee in the city center all in the same day, I think that's pretty normal. While travelling and deeply immersed in another country, I'll get pangs for home, it doesn't mean I need to get on the first plane home but it doesn't mean I hate travelling either.
There is a bit of a false dichotomy going here anyway, there is a broad range between city life and homesteading, maybe just re-gearing to be somewhere inbetween is a good compromise.