This block allows you to arrange photos of different sizes so that gallery edges do not change. All the images in a row will be of the same height and with the same horizontal margins.
In the Settings panel of the block, there are three style options to choose from: a full-screen combination, a small horizontal block, or a huge gallery taking up several screens. To put images closer, or, quite the opposite, create some space between them, you can set 0px, 10px, 20px, or 40px paddings between columns.
You can also add text caption that pops up on hover over the image, set custom color and opacity for the panel with text, set image zoom on click, and plenty of other options.