@bastienchill: Hello Bastien,
Thanks for using the Catch Gallery plugin. About the Gallery plugin not being responsive, I would like to explain to you that “Tiled Mosaic, Square Tiles, Circles”, are specific designed to make it look like that. So, the term responsive is vague and doesn’t always mean moving down to a single column. It is also used when resizing as per the screen size. You can also disagree with us as everyone has their own perspective and understands and we understand what you mean here. In this plugin, we also have the option to use the “Thumbnail Grid” https://catchthemes.com/demo/catch-starter/catch-gallery/thumbnail-grid/ which goes down the one column as you have mentioned.
So, sorry if we have caused a misunderstanding to you.
Regards,
Sakin