According to techblog.gr, OnePlus will arrive in Greece, not through an official agency, but a Greek distributor will begin to market its products in Greece.
The start will be with OnePlus 7 and the next time it will continue with OnePlus 7 Pro although with some delays. Nor is it known what stores will be available in Greece or when it will be. Keep in mind that it is currently just a reputation and nothing else. We look forward to the news.