I searched for this before posting and see it's been suggested before... but over 10 years ago!
At present, for example on the game finder page, map thumbnails open in the same page. If you've already filled in some search criteria, click the tiny tiny thumbnail and then go back, all the search fields are lost.
I suggest when making clicking on a map thumbnail, it opens a modal or popup.
You know it makes sense. It's a quick win. Let's get it done.
Thanks for reading...