MongoDB – Remove object element in array inside another object

Keep it short.
I have:

MongoDB – Remove object element in array inside another object

Keep it short.
I have:

MongoDB – Remove object element in array inside another object

Keep it short.
I have:

MongoDB – Remove object element in array inside another object

Keep it short.
I have:

MongoDB – Remove object element in array inside another object

Keep it short.
I have:

MongoDB – Remove object element in array inside another object

Keep it short.
I have:

MongoDB – Remove object element in array inside another object

Keep it short.
I have:

MongoDB – Remove object element in array inside another object

Keep it short.
I have:

mongodb pipeline $filter with condition not $in

I want to use a pipeline to update a document by filtering on the keys of sub-documents in an object.