Minecraft villager 19w12a / b multiply?

In Minecraft, they have improved the AI and the method of reproduction, unfortunately, my inhabitants no longer multiply, you have tips for me. Is that breeding with the doors is still up to date?

Villagers do not multiply in the current snapshot. That's a bug. Snapshots always have bugs. Just use an older snapshot.

You have to bring them into their natural environment. Say librarians in libraries. And just a female person and a male