In order to keep track of the messages app on the OnePlus smartphone, conversations or chats that you do not want to delete or need at a later date can simply be archived.

This has the positive effect that they are stored securely and can always be retrieved if necessary.

Note: Archived conversations can be opened directly in the archive, or they can be restored to display them in the overview again.

Android 10 | OxygenOS 10.0
Archieve conversations -  Open the  Messages app
Archieve conversations -  Tap and hold a  conversation
Archieve conversations -  Tap on  Archive
  1. Open the Messages app
  2. Tap and hold a conversation
  3. Tap on Archive

OnePlus Instructions