No. BepInEx is not needed to launch the mod menu, Iit runs in your browser and it does not work on PC. BepInEx is PC only. IIt is not work on PC as the PCVR version is written in C#. The quest one is written in C++. BepInEx is C#. C So if you try to do it on a Steam link game, it would do nothing. It only works on the official gorilla tag standalone.