why is tiktok the main talking point for restrict act? when china has ownership in other apps as well like discord or reddit?

why is tiktok getting the focus when tencent has had ownership of reddit, discord, riot games valorant etc ? china has ownership of so many things we use daily yet they aren’t getting any scrutiny why?

act apps china daily discord etc focus games main ownership point privacy reddit restrict act riot riot games talking tencent things tiktok valorant