It mounts to the front of the case, for my build it's not really changed any compatibility - but I don't have any bog coolers - also it sits just above the GPU for anything that's a little longer than the 3070FE.
Here's a photo, please excuse the fact that the systems needs dusting and the cable management sorting out, it's on the to do list for one evening this week!
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Sorry the image don't work, really keen to see it though.