Pot Size for Outdoor Autos

So I'm gona be growing 6 femenised autoflowering plants outdoors in southern California. I heard square pots are best for root development so I ordered some online. I also heard more depth than width is important. My pots came and I'm thinking that maybe they are too big to pot in because I've heard people say you don't wana plant germinated seeds into pots that are too big. So I got thinking and I'm wondering how can any pot ever be too big? I understand if it's too small but how can a pot be too big, I read something about if the pots too big the plant will use extra energy developing roots which will stunt growth above soil, but how the fuck could a seed know the size of pot it's in unless it's too small?? Anyway the photo attached is the pot size what do you think is this too big or should it work good??

no big enough man

yea mang ! 5 gallon or more. 10 would be better.

Bigger the better. The way I see it if your roots have space to grow during flowering they will have bigger buds.

plant them into the ground, best method!

im gona transplant once before flowering into something a lot bigger, next auto grow I will plant in the final pot and compare the results

Not good to transplant autos

at all? Ive grown autos once before and transplanted them at least once I think and it seemed fine, could it affect yield? you think I would be better putting them in germinated seed in a 5 gal pot from the very start?

everything I have read on Autos says that is correct. There is an Autoflower forum here that im sure goes over that.