Recording audio and video in browser and as a nice to have on mobile

Hi everyone I'm looking at implementing audio and video recording from the browser and hope fully something that could also be used on mobile.

At the moment it seems like RefordRTC is the most popular library. If there are any other that you could suggest I would appreciate it.

Also I'm looking for examples of how it has been implemented, preferably in OutSystems.

I'm new to Java Script so any help would be mush appreciated.

Thank you.