Can two Pokemon in the "undiscovered" egg group breed together?

Question

So let's say I have two Pokemon in the undiscovered egg group in Pokemon Sword and Shield. Would they breed?

Comments

Not a full answer, but https://bulbapedia.bulbagarden.net/wiki/No_Eggs_Discovered_(Egg_Group)

Answer 1

Nope, Pokemon in the undiscovered egg group cannot breed at ALL!
This group includes Pokemon such as legendaries, mythicals and some rare instances, such as ditto.

Source

Answer 2

Undiscovered is one of fourteen different Egg Groups. Egg Groups are used to identify which Pokemon can breed together, but this particular egg group is for Pokemon that cannot breed.

So no, even if they are in the same group they can’t breed cuz most of the undiscovered group Pokémon are legendary or genderless Pokémon

Hope I helped