Going to Greece later this month.

Supposedly Cosmote has the best coverage which may be key going to some of the islands where the attractions are beaches and cliffs which are far away from cities of any size.

I can't tell from the Cosmote site whether they offer prepaid eSIMs. They do have some pages in English but when you try to drill down for details, it's in Greek.

Has anyone been recently? Curious about which carriers they were on, what the speeds and coverage were like.

Prepaid Data Wikia lists some unlimited offers but not sure how current that is. Also, last time I went, supposedly only the store at Syntagma had people who spoke English. So I recall walking about a kilometer there and they said they run out of prepaid kits all the time.

But also want to know which carriers various eSIMs use.