Question about Montana LLC and Foreign Registration in California

Hi everyone, I’m dealing with a question about my LLC and could use some advice.

I live in California, but my LLC was formed in Montana. I got a virtual address there through an agent and also obtained an EIN. The LLC is intended only for online business, I don’t have any office or employees in California, and so far the LLC has never been used.

My question is: Do I need to register this LLC as a foreign LLC in California or not?

I honestly didn’t know about this when forming it. If I had, I probably would have just set it up directly in California. Some people say it’s fine since the business is only online and I don’t have a physical office here. But others say because I live in California, I need to register it here as a foreign LLC anyway.

If anyone has clear information or experience with this, I’d really appreciate your guidance.