I don’t know what happened with your post I did not see it…
We can definitely use HTML and CSS to organize the images in 4 columns that will change to 2 on mobile.
Read the article below (the 4 columns section)
Responsive Columns and Widgets – Weaver Xtreme Guide (weavertheme.com)
But I would also check WordPress block, there may be column blocks that will do that too.
FYI, I always answer, even if there is no solution, so if there is no answer assume something went wrong 🙂