Here you can see the Recover messages from messengers
Open Messenger: Open Messenger app on your device.
Click on the Menu Icon: Look for the three-line menu icon in the top left corner (Android) or the profile picture icon (iOS).
Click on Archived: Choose the “Archived” option from the menu.
Find the Conversation: Scroll through the list of archived conversations.
Unarchive: If you want to restore the conversation to your inbox, swipe left on the chat and select Unarchive.
Read More : https://guideet.com/how-to-recover-deleted-messages-on-messenger/