Another: weather doesn't affect Quark Drive, and terrain doesn't affect Protosynthesis.

Another one to add: if both sun and another weather are present turn zero, and the other weather goes first, the Booster Energy will be consumed and Protosynthesis will activate before sun (I think it's safe to assume the same would happen with Quark Drive and electric terrain).

Just to add context, this is what happens in every other case without weather/terrain. All other turn zero abilities activate, then Booster Energy activates, and because of this activation order, the same Roaring Moon from the previous video gets a Speed boost instead of an Attack one.

This is relevant for something like a Roaring Moon with an Attack boosting Booster Energy, because if your weather setter outspeeds the opponent's Intimidate, you get the boost in Attack before they can lower your Attack and change the boost to Speed.

This also works with Quark Drive and an ability that sets terrain other than electric terrain.

Learned about an odd interaction today at a local:

On turn zero, if a Pokemon with Protosynthesis holding a Booster Energy and a Pokemon with a weather ability that doesn't set sun enter the field, Protosynthesis activates immediately after the weather ability.