If you need is a single method to stop using them all at the same time, you can use this method to do it.
Don't want to use Zoom anymore? Here's the full guide to delete your Zoom account on desktop and Android or iPhone. Closing your Zoom account is permanent.
Want to delete Tiktok from your phone? Full guide to uninstall the Tiktok app on Android or iPhone. Uninstall Tiktok doesn't delete your Tiktok Account.