The point
Analytics should answer business questions
Google Analytics 4 can track a lot, but most small businesses only need a clear answer to a few questions: where visitors came from, which pages they read, and whether they called, submitted a form, booked, or clicked a key link.
The current version of Google Analytics uses an event-based model. That means page views, button clicks, form submissions, phone taps, and other useful actions can all be treated as events. The important ones can become key events.