Grid gallery with hover text

Hi. I’m trying to create a grid gallery like in this website , two images per row, then one image per row, and each row has to have the same height.
I’ve tried creating this using a grid - then a container set to full width - and a pro gallery inside the container only because if I use a regular image instead of a gallery, there is no hover text effect (please correct me if I’m wrong!)
but once I put the pro gallery in the container, it overrides the size of the container! ugh!! what am I doing wrong?
please how can I create this simple gallery?
if I just create a pro gallery with an Alternate layout - I can’t control the size of the rows. or can I?
Help appreciated. thanks!