A plain-language explanation
Bounce rate in Google Analytics 4 is the percentage of sessions that were not engagement sessions.
Where it helps in practice
Bounce rate depends on the analytics definition and may indicate no engagement rather than a bad visit or poor content.
The decision before implementation
Check the calculation and page role first; leaving after finding a phone number may be success while idle time is not.
How to verify the result
Analyse it with time, events, source, page type and conversion and verify implementation quality.
