Mine as well. Only major registrar with U2F. They seem to take security very seriously.
I recently went looking for a registrar and one of the must-haves was U2F. Only Amazon and Google had it. Didn't know that Gandi has it as well. Good to know!
PS: I was disappointed that Cloudflare still doesn't have a U2F support yet they are a part of critical infrastructure for much of the web. We ended up not using them because of that.
On the other hand, I've heard less than great things about Gandi's reliability and support lately. If you've had to contact their support team, what's your experience been like?