Issues with my name on Meta

Hey there 🙂 I was trying to change my name on Meta, but whenever I try to save it, I get hit with this message: "We require everyone to use their authentic name on Facebook." Now, look—I totally get the sentiment behind the policy, I really do—but the specific word I'm trying to use is already being used by plenty of other people on the platform... so I can't quite wrap my head around why it’s flagging me specifically. Any idea what's going on? 😠