What counts as revolving credit for a CC application?

Hi all! I'm thinking I want the Venture X as my next card but didn't pass the pre-approval. FICO score is about 775, household/available income is $50,000ish.

Their reasoning for denying me pre-approval was that I have too many lines of revolving credit in the last 2 years. What constitutes this? For what it's worth, I took out one card in July 2023, another in December 2023, and another in August 2024. The question is, what else counts for that? I took out a car loan in July 2024 as well, which I'm assuming counts...? And do authorized users on my fiancee's/parents' cards count? I'm assuming a recently downgraded card *doesn't* count?

Hoping to clear this up, because Venture X fits my needs well and I'm not planning to apply for anything else until I can take it out. I've heard they dislike churners so this is my last chance to get it for a while, I think.

Thanks for any insight y'all can provide :)