Hubitat is not designed to work with camera feeds. It has limited connectivity with Internet devices. The Hubitat dashboard does have the capability of displaying a web page, so if your camera feed is accessible through a specific web page (perhaps using ITTT), then it might work.
Which Echo Show do you have? The original Echo Show devices will work with Ring cameras, but might not work with others brands.
The newer Echo Show 10 versions 2 and 3 come with a built in hub that will work with Zigbee and WiFI devices (but not Z-wave). They might work with cameras other than Ring, but I have only tried Ring.
I suggest you look at the Amazon Alexa web site for further information on the Echo Show devices.