That’s a very common question for people needing a break from the main feed.
The Direct Answer: Yes, you can. Deactivating your Facebook account will not deactivate your Messenger, so you can continue to chat with your family and colleagues.
The system is designed to let you take a break from the public-facing image and video content of the main Facebook platform while retaining the private, text-based utility of Messenger.
When you go through the deactivation process, your main Facebook profile, along with all its photos, posts, and videos, will become invisible to everyone. However, your Messenger will remain active. Your friends and family will still be able to find you in their chat list and send you text messages just as they do now. You can continue to use the Messenger app on your phone or the Messenger website to send and receive text messages and media files. The only thing you must not do is log back into the main Facebook website or app, as that action will reactivate your entire profile.
Cheers,
Jeff