Telmore in Denmark (my current operator) first gave my subscription a price hike to "compensate" for the new roaming rules and then advertised that I could change to a "Denmark only" subscription for the old price.

It seems this option is now gone, however instead I now have separate data limits between Denmark and EU, with the latter being substantially less (only 5 GB, "calculated based on your subscription").

When I'm a bit less stressed I think I'll start shopping around for another operator :^)