Which @angular/* package(s) are the source of the bug?

Don't known / other

Is this a regression?

Yes

Description

Per a report from a developer online:

Just found out that CustomEvent doesn't work on SSR because it doesn't use standard API's to dispatch the events but rather Angular shims which don't support it.

Can we please have a look at this?

Context:https://x.com/AlemTuzlak/status/1970798138270347410

Please provide a link to a minimal reproduction of the bug

No response

Please provide the exception or error you saw

Please provide the environment you discovered this bug in (runng version)

Anything else?

No response