[kuschku]

Not really. For example, if the company has assets within EU jurisdiction, those can be seized to pay the fine, or if the company has assets outside of the EU, but with EU companies (e.g. banks), they can be forced to help seizing the assets.

There is countless precedent of the US using these tactics to enforce IP law, and EU countries using them to enforce consumer laws.

It is expected that the EU would do exactly this.

For example, if YCombinator refuses to adhere to the law, but holds shares in an EU startup (and they do in several), then those shares could be seized and auctioned off to enforce the law.