do you also by chance use Music Assistant (it's an additional
integration to Home Assistant and they both use the upstream
pychromecast library). If so, also try disabling MA since other folks in
the github thread have suggested that was required as ...
I'm honestly shocked but disabling the cast integration on my home
assistant setup restores the ability to cast:
https://github.com/home-assistant/core/issues/93360
Having a similar issue. The only effective temporary solution I've found
is to unplug the camera from power and then I get the option to see a
live feed. After plugging it back in after a few days it works fine
until it doesn't. Definitely seems soft...