LG TVs transcribe conversations you’re having in the room and store them locally. While they haven’t been caught sending that data anywhere AFAIK, there are known vulnerabilities that lets attackers read these transcriptions.

Gamers Nexus had a viral video about them here: https://www.youtube.com/watch?v=6IFVTcM28KA

> is there any company caught “tracking audio with microphones”?

I think it's become an internet meme because it's hard for the average person to understand the more creepy thing that's happening. All the data points being captured as one goes around the internet allows rich profiles to be built without something as complicated as recording and transcribing audio.