- 🇫🇷France Dom.
Metatag was not supported on 8.x, please refer to #2501637: [META] D8 port: Roadmap and Feature Request →
The point is that metatag is now a field on the entity that can display many other sub-configurations.
I added minimal support for metatag (although i don't see the point). Now it could be made better by hide/show individually each metatag configuration I suppose, but that is another story. Automatically closed - issue fixed for 2 weeks with no activity.