What is the difference between ‘event parameters’ and ‘user properties’ in GA4?

Question

Google Analytics GA4 — Medium

What is the difference between ‘event parameters’ and ‘user properties’ in GA4?

Accepted Answer

Event parameters in GA4 are attributes sent with a specific event occurrence, like item_name on a purchase. On the other hand, user properties are attributes persisted across all events for a user, such as subscription_type.