Like WhatsApp, or Messenger, add a tool that allows - in a personal direct message - to know if the person has read the message, or not. And in group chat, to find out who read the message. For direct messages, everyone should be able to activate or deactivate this feature to maintain control over their privacy. Take inspiration from WhatsApp, or Slack, or any other work application. If you want to attract people to ClickUp, people need to find familiar basic features right away, otherwise they'll wonder why they're making the effort to change.