Problem is Qualcomm will only work on Android and iOS, in order to port it to other platform you would need use something else which won’t be compatible, UE4 is designed in the way that regardless what you code it will work elsewhere, thats why i think it would be better for Epic to implement it then making 3rd parties do it. Also reason why you don’t see those companies interested in making plugin to UE4 because 1. Unity dominates on mobile market and it will for longer time because Unity doing a lot better in mobile 2. There no distribution platfrom for plug-ins as plug-in system it self is not 100% ready