sure, large encrypted data streams, in 5GB increments are impossible to detect
impossible to detect? No, extremly hard to identify what it is? yes.
Who cares if they can see it’s 5 GB stream, they have no way of knowing whether or not it’s a pirated movie versus a backup from a home server or a data stream.
In fact some vpns are actually starting to implement data buffering where it makes every request is the same size regardless of what it is to protect against AI Assisted traffic analysis
Plus, people are fighting detection too. Where “normal” VPN protocols are recognized and blocked, like China, people are trying to make them indistinguishable from normal HTTPS traffic.
There are a lot of industries where huge amount of data is moved all the time (health data, VMs, anything actually). Even small startups can do that and it’s cheaper than ever.
Heck a tiny regional bank I worked at with less than 2 dozen locations was constantly flinging data between its Primary and DR datacenters, and they were too small for any dedicated fiber so that was just over standard ISPs (with some locations technically on residential plans because the ISPs didn’t offer any better options than that in the small towns the bank supported)
