Search for the “Product Reviews” widget in the Product widgets. Configure the widget’s settings, appearance, and content according to your preferences.
It has 2 tabs: Style and Advanced

1. Style
The style tab also has 8 different sections.
1.1 Review Heading: Adjust the typography, color, and margin of the review heading.
1.2 Review Style: Edit the color and typography of the meta and description sections. Modify the Single Review Spacing.
1.3 Start Icon: Customize the color, size, and spacing of the star icons for a better user experience.
1.4 Review Form Heading: Adjust the typography, color, text color, text background, and margin of the review form heading.
1.5 Review Form: Customize the input label and form input settings according to your preference.
1.6Button: Adjust the button’s typography, color, background color, and border type.