This is a simple wall mounting bracket for Lidl PS4 controller charging dock. It can be screwed onto a wall, and it latches onto the side grooves of the docking station. It's a rather tight fit, so friction alone is more than plenty to keep it from sliding off.

I've printed 2 of them so it doesn't rotate when docking or undocking controllers.

I've printed this in PLA, but I don't see why you couldn't print it in PETG or ABS.