Opera is still headquartered in Norway. Don't know if that helps, but there may be interesting corporate associations there.
I thought, but have never verified, that fines given as GDPR enforcement can be collected throughout the EU/EEA. If this is true, and if European courts uphold the fines when Grindr undoubtedly challenge them, then it's my understanding that the Norwegian DPA can have Grindr assets elsewhere in the EEA seized.
Does anyone know for sure?
If the Norwegian DPA is the one handling this case, probably that's because Grindr's EU operations are legally established in Norway. If they don't have an "establishment" in the EU, then I think it's up-for-grabs, and my gut is that NOYB would have preferred to file in France or Germany.
This is why GDPR actions against Facebook, Google, etc. all go through the (under-resourced) Irish DPA: US companies are all based there for tax reasons. It's... becoming a problem.
I have a relative who is a lawyer and legal attorney who would definitely not know this and when asked would answer that it is not his speciality and that he would have to do more research.
He's an attorney in employment law, and I asked him some things about criminal law and he did not know, and when pressed to make a guess, his guess was wrong.
It seems that law is quite complicated, and that lawyers have their specialities.
It also caught my eye that their TOS didn't allow users a choice in data sharing, it was either agree or don't use the app. That might have some wide ramifications, I've encountered many web sites that won't let you past the sharing opt-in until you click agree - i.e. it is impossible to disagree. It is a completely foreign concept for US companies.
Wikipedia says Grindr is based in California, US. I wonder if they will pay the fine or refuse. If they have no assets in Norway I imagine it may be hard to collect from them.