Hi @miaroze ,
Do you want to embed the image uploaded in MS Form into html?
If so,I did a test for your reference.
In my scenario:
My OneNote:

My Flow:


{
"type": "array",
"items": {
"type": "object",
"properties": {
"name": {
"type": "string"
},
"link": {
"type": "string"
},
"id": {
"type": "string"
},
"type": {},
"size": {
"type": "integer"
},
"referenceId": {
"type": "string"
},
"driveId": {
"type": "string"
},
"status": {
"type": "integer"
},
"uploadSessionUrl": {}
},
"required": [
"name",
"link",
"id",
"type",
"size",
"referenceId",
"driveId",
"status",
"uploadSessionUrl"
]
}
}

<img src='@{dataUri(outputs('Get_file_content')?['body'])}'/>

Best Regards,
Sunshine Gu