Seemingly lacks IPv6 though? Cloudflare requires you to pay them and make an explicit effort to disable IPv6. Sad to see it not enabled by default on Bunny.
Seems @zorked is correct about some POPs simply lacking IPv6. I simply happened to hit one of those. Quite disappointing but I guess Bunny is on the cheap side and doesn't actually own or manage their network like big CDNs do.
They do support IPv6 but not in every POP, unless something changed.
I have IPv6-only backends and I had to select serving from the main POPs rather than the entire network (which is fine by me as they are also cheaper).