Do facebook reels must be unique?

If not unique do you get less reach?

People usually admire new concepts, so emphasis is on the substance to produce something unique.

Yes, Facebook reels must be unique and original for getting viral. Reels that are unique and creative are more likely to to capture the attention of the viewers and encourage them to engage with your content. You can come up with unique and creative ideas and you can also use some tools to add filters and visuals to your reels to make them different.

It also doesn't have to be unique, but if it's good and unique it will go viral faster