Sounds like an ISP issue.

Isn't that mostly a QoS issue?

The Internet doesn't have QoS.

Last mile networks do.

Yeah, but nobody trusts ISPs to prioritize traffic; that's what the decade of net neutrality discussion has been about. If they start prioritizing Zoom over Netflix now, it just opens the door to continuing that prioritization (for pay) after the crisis.

@Hamuko you don't need to buy it, the ISP owners will quickly buy that argument for you :)

And the EU can then take action against the ISPs. The EU hasn't been particularly hands off.

I'm not sure if I buy the argument that doing something weird during a state of emergency is a valid cause to keep doing it outside of it.

Try tunneling things thru VOIP packets and see if you notice a difference

in these times where a significant amount of business is done from home it becomes a national issue pretty quickly.