Screen Casting - No Devices Found

Screen casting from my Android phone to the Roku Stick works perfectly fine, but not from the laptop. I’m not adept enough with networking, etc. to troubleshoot this issue. Here’s what I know…

sudo firewall-cmd --list-ports: 8008-8009/tcp 5353/udp

sudo firewall-cmd --list-services: cockpit dhcpv6-client mdns ssh

uname -a: 5.14.0-611.55.1.el9_7.x86_64, xfce 4.18 desktop, and Google Chrome 148.0.7778.178.

How do I track this down?