The relevant section is taken from part 12 (User Content) where User Content is specifically and narrowly defined as stuff you upload to the website services.

I actually think there is an attempt in the ToS as written to keep the definition narrow in the way that the parent comment quotes, but it is unfortunately not super well drafted, because there is a partially-explicit distinction between "platform" and "services" that may make sense to a legal person, but is not sufficiently clear for a technical person.

So not quite good enough, IMO, but a distinction is being made in the relevant section, and this can be seen if you read the paragraphs in question.