Element Product Category - make product boxes same caption height

In the element go to advanced, at the bottom open custom CSS

Here is where you paste the code.

You'll need to adjust the elementor number to what you're working on so, open the developer tools (F12) and find the element so you can change the number.

Then alter the minimum height in the code.

.elementor-5170101 .elementor-element.elementor-element-f978015 figcaption {
min-height: 100px
}