You'll need two screws and possibly anchors to go into the wall and a 35mm M3 screw to attach the PS5 to the mount. I've done my with 4 walls and 20% gyroid infill in PETG.
Just a note, when I printed mine it had an error unrelated to the model and stopped printing. I had to restart it and resume, so it missed part of a layer--that's the line you can see on the bottom of the mount perpendicular to the PS5.
There's a small extraneous line on the bottom and a small portion of an extra hole, but those don't impact the function--it works perfectly.
The author remixed this model.
The PS5 Pro with a disc reader is slightly different than the PS5 Slim disc. Everything moved over a few mm. This is a remix of my remix of the original.