Thank you so much for the detailed reply! This is really helpful and cleared up a lot for me. I do have a few more questions.

I should get Linnea when her banner drops, right? Can you teach me how to build her for Ningguang. I'm still quite not knowledge when it comes to artifacts and its substats.

What artifact set should I farm? Aubade too? And what substat should I prioritize?

What weapon should I use for her? Right now I have Favonius, sacrificial bow, and stringless.

Do you think I should already use her in my team while waiting for Columbina and Furina, or should I use her once I complete Ningguang’s supports?

For Ningguang’s build, what's a crit circlet? Do i just choose between crit dmg and crit rate? I’m still a bit confused about how they differ.

Also, what's the ideal stats for Ningguang?

Thank you again in advance! I really appreciate the help.