An old post has resurfaced online which claims that Facebook is going to make its users private photos public, but the claim is false.
Facebook does not own its users' content. When one signs up for a Facebook account, they agree to certain legal terms and conditions, including privacy policies. They user can modify their privacy settings at any time, but they can't unilaterally change (or exempt yourself from) Facebook's terms and conditions, including its privacy policies. As a Facebook user, despite what this hoax says, you own your content, including all your photos and videos. Facebook does not own your content, nor has Facebook stated it owns your content or will make your content public. As a Facebook user, you grant Facebook a right to use, share, and distribute your content in accordance with your privacy settings.
The message claiming that Facebook will make users' private photos public is an old hoax which started in 2012, resurfaced in 2016 and then again in 2019.