Step 1
Open Analytics Home Page
Step 2
Click on Report Section
Step 3
Go to Engagement Click on Page and Screen
Step 4
CLICK ON CORNER PEN BUTTOM Customized report
Step 5
In Sidebar you can see dimension and Metrices, Screenshot Given below
Step 6
In Metrices You can Search Bounce Rate, Screenshot Given below
Step 7
Click on Apply Button, Screenshot Given below
Step 8
You can see bounce Rate Screenshot Given below
Finally you can see Bounce Rate in GA4
Also Read: All About Google Analytics 4 (GA4) Glossary