Can ActivityPub be used for W3C Annotations?

I would like to use ActivityStreams/ActivityPub to distribute annotations,
as defined in the W3C's Web Annotation Data Model
<https://www.w3.org/TR/annotation-model/>. Other than convincing other
clients or servers to recognize Annotations, what compatibility issues
exist between the relevant specs? For instance, the ActivityPub
<https://www.w3.org/TR/activitypub/> specification relies on the
ActivityStreams Activity Vocabulary
<https://www.w3.org/TR/activitystreams-vocabulary> to define a set of
object types
<https://www.w3.org/TR/activitystreams-vocabulary/#object-types> that does
not include "Annotation." If I wish to use "Annotation" as an object-type
while remaining compatible with Activity* documentation, do I need to get
that Vocabulary extended? Or, is some less cumbersome approach available
and appropriate? Also, are there any existing ActivityPub services that use
W3C Annotations?

Below, you'll find an example of what I'm trying to do. The idea here is
that I want to annotate the Vocabulary's use of "xsd:dateTime" with the
text: "A wise choice!." So, I use the ActivityPub Create action to publish
an object of type Annotation that links the body of my annotation (the
text: "A wise choice!") to the Vocabulary via its URL.  The precise
location and span of my annotation within the document is found by using
the specified selector.

{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Create",
"actor": "https://example.com/bob",
"published": "2023-02-28T19:36:51Z",
"to": ["https://example.com/alice/", "https://example.com/mary/"],
"object": {
"@context": "http://www.w3.org/ns/anno.jsonld",
"id": "http://example.org/annotation#id=32B24",
"type": "Annotation",
"body": {
"type": "TextualBody",
"value": "<p>A wise choice!</p>",
"format": "text/html",
"language": "en"
},
"target": {
"source": "https://www.w3.org/TR/activitystreams-vocabulary/",
"selector": {
"type": "TextQuoteSelector",
"exact": "xsd:dateTime",
"prefix": " properties defined as",
"suffix": " values must conform"
}
}
}
}

bob wyman