Wait a second, that page lists three different classes of selection (aka different qty's of movies / tv show / cd's / games) based primarily on aircraft type. So according to QF, the OP's question is yes...
Is noIs the QF IFE the same on all aircraft?
Is yesif I will have to put up with it on other aircraft as well?
I checked the movies for flights from SYD to Asia, to the USA and to LHR for the month of July and they seem to be identical.
Nope, according to both the QF doco and my own personal experience, the qty of movies / tv shows etc is much smaller on the B737. Perhaps a reflection of the sized runs it does.