What function does Instagram provide with this WebRTC listener besides tracking?

People install Instagram to look at photos and reels, not to help facebook track them better.

If I put a crypto-mining script in a game I don't get to claim "well they installed the app" when people complain. The victims thought they were installing a game, not a crypto-miner.

Here, the victims thought they were installing a photo sharing application, not a tracking relay.

Found the meta PM that thought of this idea

Software that came preloaded with what sounds suspiciously like a rootkit to keep the background service running on some phones.

Please don't "don't that phone then" because it's the same all the way down to rotary telephones.

I still didn't consent to meta tracking me on my telephone. I understand the shadow profiles and tracking pixels and whatnot, but cmon.

Next year "actually meta was listening to conversations captured by android devices and using it to target ads"

Don't use a cellphone? Meta and Google track desktop web use. Don't use a computer? Okay, that's cool.