I haven't seen this stated anywhere, but if you have the T-Mobile ONE Plus International plan, and a second line; you are qualified for a Netflix account.
Question is if you watch Netflix on your device (or screen mirrror), does that Netflix data count against the 32GB data limit where throttling begins?
A single, two hour HD movie on Netflix could be in excess of 6GB - see link for estimated data usage:
How can I control how much data Netflix uses?
Also T-Mobile ONE Plus International promises:
Unlimited 4G LTE Mobile Hotspot*
Unlimited HD video streaming (US only)
Just what does that mean, can I then watch HD Netflix by using Hotspot (tethering) in excess of >32GB?
Will hotspot (tethering) be throttled in excess of >32GB?
Can the majority of my data be by hotspot?
These details are not clear.
Yes it counts towards the prioritization limits once above 32GB(rumor cap is moving to 50).
Any data used on the account counts towards the threshold. You may see that threshold at 50 GB soon.
Manage your T-Mobile account