Indeed, the Floodlight is quite bulky. When I first pulled mine from the bag, my first thought was “massive.” A model-specific holster would, in most cases, probably be less bulky.
I have doubts that a Floodlight can truly be concealed on my rather thin* frame, inside the trousers, but it can be rigged as an OWB holster, with one of those Blade-Tech products, so, it would have utility, if I were to find it unworkable @ AIWB, so it seemed worth a try, and I bought one.
*Mostly thin. There is that pandemic belly that just won’t quite go away, just yet.