Option A is to burn a pile of cash and time to keep abreast of it.
Option B is simply… block the EU.
It seems it wouldn’t be hard to list the regions it’s available and at least allow a description of what it is. To know if it’s worth using VPN
And in this specific case, its a Chess demo, its probably something different
Allowing of a global login, SDK and default workflows would make it very easy to comply to everything.
Have you considered a less paranoid explanation, like... focused on protecting Europeans from the abuses of big corporations?
Despite being a huge capitalist, I do think there's a sweet spot of very minimal regulation that works out best for everyone.
However, the blocking-the-EU outcome is obvious after a couple of minutes of thinking about it in game theory terms. Another one to look out for is companies (both physical and digital) that never even considered doing business in the EU, but who would have if it were easy.
There I fixed it for you ;)
Edit: okay okay, I get it... Consumer protection bad, Big Tech good!