Watching videos on stream without getting DMCA strike or banned

I notice a lot of streamers that do react content watch Youtube videos, TV shows, and foreign TV shows all the time on stream. How do they do this without getting banned or a DMCA copyright strike? I already have my 'Desktop Audio' on a separate audio track from my 'Twitch VOD Track' so that the audio is not in my VODs. I just want to make sure I'm going about things the right way.