Moving country tax question

In a few months, I will be moving to a country that has zero tax on crypto gains, however, the country I am moving from does have capital gains tax on crypto, I would like to take my crypto with me, I don’t plan on moving back so the return tax residency rule doesn’t apply, my sale wouldn’t be anytime soon, I am wondering if simply moving country becomes a taxable event, even on paper gains, as I read somewhere that with stocks it is, although I am unsure on the creditability of the source as it does seem a bit unfair whilst holding. I’m struggling to find definitive information online, is anyone able to shine some light on the topic? Thanks

Edit: UK to EU