It sure beats the Reddit system where you think you are interacting with people, only to find out a couple of days later that your fresh account is shadow-banned and nobody is seeing your comments and that none of your likes went through.
At least Facebook tells you that you are banned.
No, FB has their own shadowban system
Tip: You can always tell if you are banned on Reddit by accessing the shadowban appeal page which is only visible if you are shadowbanned yourself:
https://reddit.com/appeal