FastStore only sends analytics events, can I still build behavior audiences?

we are FastStore only, running the current storefront on Next 14. I already know profile enrichment is off the table on this stack, no name or email on the profiles.

what I still want is behavior-based audiences from browsing and cart activity. how far can I actually get with just the analytics events? is that enough to segment on, or is it a dead end without the enrichment?