System.Text.Json Deserialize nested Polymorphic object without type discriminator

Assume the below model:

System.Text.Json Deserialize nested Polymorphic object without type discriminator

Assume the below model:

System.Text.Json Deserialize nested Polymorphic object without type discriminator

Assume the below model:

System.Text.Json Deserialize nested Polymorphic object without type discriminator

Assume the below model:

System.Text.Json Deserialize nested Polymorphic object without type discriminator

Assume the below model:

System.Text.Json Deserialize nested Polymorphic object without type discriminator

Assume the below model:

System.Text.Json deserializing to a class with an object property always yields a JsonElement

I have a class that represents an expression tree with three properties: Left containing either another expression or a discrete value, Operator containing an enumeration of operation types, and Right which can contain another expression or a discrete value.

System.Text.Json Deserialize Polymorphic object with nested polymorphic object

Assume the below model:

How can I deserialize JSON into totally different types from the same JSON dictionary or array without a custom deserializer?

How can I deserialize JSON into different types from the same JSON dictionary?

System.Text.Json: Error while deserializing dictionary returned as empty array

I can’t seem to solve this one. All other questions i can find with the same issue are for Newtonsoft.Json.