Example: "I love watching movies on Netflix on my computer in the living room."
What is the subject object relationship for the adverb phrases in "on Netflix on my computer in the living room"?
Is Netflix the subject, and everything else the object?
What about "on Netflix on my computer in the living room" to "I love watching movies"?
"on Netflix on my computer in my living room" is a object for the "I love watching movies" as the subject?
It's verbs that have subjects. The subject of your first verb, love, is I, and the object is the gerund phrase "watching movie." Within the gerund phrase, watching is the verb, and its object is movie.
Everything else is a triple of prepositional phrases, each of which functions adverbially, as each modifies watching. As for Netflix, it's the object of the preposition on. Likewise, computer is the object of (the second occurrence of) on, and the noun phrase "living room" is the object of in.