About template is require ACF plugin to installed because all feature in this page using Custom Meta Box by ACF, it's have own meta-box blocks.
About block is contain title for description, the content is from page content editor. Then you also able to add gallery images as slider in the right side if content text.
This section is a repeater block to show a company description with image. You can add the item as much as you want, but recommend to use same paragraph line to avoid jump item.
This section allow you to add testimonial post item into your homepage. Below the testimonial option you will find "Add Client" button. That's repeater from add some partner image with linnk below the testimonial.
This block be able to call team post type into your about page. But you need to creat team post before can use this section. The psot item will display as carousel.
This section is counter repeater.