Is it the original from Huy Fong though? In the Netherlands there are a few different variants of the sauce for sale, but the original is only sold through smaller shops.

I like this one, packaging looks almost the same: https://static.ah.nl/static/product/AHI_43545239353338303138...

You're right. What I've got is NOT the original. I was misled by the almost identical look, wow. (got a FlyingGooseProduct here)

In Switzerland you can get it too.

Given that food laws need to be aligned with the EU I also don't believe that the block is an EU wide thing.

It seems to be a recent change: https://newsbeezer.com/swedeneng/sriracha-sauce-can-no-longe...

You're probably seeing Flying Goose brand, which is very similar in appearance (bottle, etc) but not the same taste.

Good guess! I checked in my fridge, and it does indeed have a flying goose logo.