First, let's cover how you can add company logos to text testimonials, just like 👇
Click the text content or the ⌄ icon at the bottom-left to expand the testimonial card.
Once the card expands, you will see a list of icons at the bottom, and from there, click on the Edit icon.
You will see a popup modal like the one below. Scroll to 'Company Logo, upload the logo, and then save the changes by clicking on the "Update the Testimonial" button.