Functionality to screen share mobile phone/tablet while being in the call on PC

There is already a post about screen share on mobile, but my circumstances are different. I prefer using Discord on my PC so that I can use my headset, browse the internet more easily, etc. I'm sure you understand.

Currently you can only screen share windows open on your PC, and screen sharing the screen of a mobile device isn't possible. Instead I have had to use screen mirroring apps to be able to mirror my phone screen to PC and then screen share that application window. The problem with this setup is that the audio cuts out completely for the viewers quite often. Also it's a bit of a hassle to do it like this.

So like the topic states, I'd like an added functionality which allows me to join and stay in a call on my PC, but screen share my mobile phone's screen. Alternatively other options, such as an added audio support for third party screen mirroring applications would be convenient as well.