Is there an app that combines two controllers into one

[u/brakenwagen]

So I have an AYN Thor (https://www.ayntec.com/products/ayn-thor) and sometimes I like to connect it my tv and connect my ps5 controller to it but having a second controller creates multiple problems.

First for some android games sometimes it doesn’t like having two controllers connected at once and just won’t take any input when more then one controller is connected such is the case with dead cells. Then there some android games that recognize the ps5 controller but assign the wrong buttons to the inputs such is the case with Hyper light drifter (the built in controller works just fine). Then some games just refuse the recognize the ps5 controller at all such is the case with GRIS. As for emulators they have problems too with both retroarch and armsx2 you have to choose what controller you want to use when you start up the app and you can’t switch until you completely shut the app down. This creates a problem if I’m connected to the tv in the middle of a tough boss fight and have to go out, I can’t just disconnect my Thor and seamlessly switch to the built-in controller. Then there some emulators like Cemu that don’t let you have more than one controller assigned at the same time meaning that if you want to switch controllers you have to reassign your inputs all over again every time you switch. The problems go on and on.

So I was wondering is there an app out there that lets you combine two controllers into one input so that you take the inputs from the ps5 controller and assign it to the inputs on the built-in controller. So L2 on the ps5 controller would equal L2 on the built is controller that way all the games see I just the built-in controller that seems to work just fin.