With two or more businesses, select "All Locations" to show aggregated reviews. For example, if you connected 2 locations then reviews will display as 25 from each location based on your filters. Ratings are averaged, e.g., 4.8 and 4.7 become 4.75 and rounded to 4.8.
Use the custom code to add your text instead of the “Leave a review” and “Load more”. You can find the codes here: Google Reviews widget customization (change “Leave a review” button text).
Add a widget to collect Google reviews after checkout. Here are the steps: