I've found that using a VPN reduces my streaming ability. Using Private Internet Access in the past I was forbidden from watching anything on Netflix. Also I was forbidden from editing Wikipedia even on an old account with positive editing history.
Netflix (et al) are blacklisting some common VPN's IP ranges. If that fails, they use some DNS tricks to route the requests to your nearest geographical API and if there is a discrepancy between your IP's location and endpoint's location, they block the requests too. It is possible to overcome, but with some work.
Yeah tried to fool Disney+ and most things failed. Even routing through my own private VPS didn't work. They're definitely getting much better at it.