my network SSID is set to broadcast - my iPhone says it's hidden

I recently updated my iPhone 6s to OS15.5 and noticed that while my router is set to broadcast the SSID, my iPhone sees it as a "Hidden Network". All other devices (iPads, laptops, other iPhones) see the network SSID.

Shutting down and restarting the iPhone doesn't seem to make a difference. Any ideas?