Neither. This is a Yorgos Lanthimos joint all the way. But it's as powerful and piercingly original as a work of the aforementioned masters.
The premise isn't as intriguing or clever as The Lobster, but the execution, oh boy... is even better. A horrific black comedy, a nail-biting thriller, and a compelling moral tale all at once. The entire cast is superb, but Barry Keoghan will be a star. Between this and Dunkirk, it's his year.
Go watch it on the big screen. Experience it, then see it again, and let its brilliance wash over you. I don't say this often, but to me, this is an instant classic.