Yeah, us cord cutters use VPN’s for the obvious reason of not getting in trouble and shutdown from our ISPs. But there is nothing illegal about a VPN at all and some use it all day every day just to keep outsiders from knowing where we go and what we look at. The same way you can ask your apps not to track or send and receive data.
But, with that being said, while a VPN is not illegal, and there’s currently nothing that an ISP can legally do to stop you from using it, specific app owners and providers CAN, WILL, and have in the past, not allowed you to have a VPN enabled while using their app.
Right now you can use a VPN to look like you’re in a different country to get different regional choices on apps like Netflix. However they sometimes intentionally don’t let you use them and if you tried you’d get a pop up saying to disable your VPN before they’d let you use their app.
That’s why I started using ExpressVPN for my VPN. I used to use others, but because they would broadcast their VPN server IP addresses, sites or apps could just block them all and not allow traffic to flow to and from them. Which kind of defeated the purpose. So I swapped to ExpressVPN and never had another problem. That’s been years ago now though and I’m not 100% sure if that’s still an issue or not. But the other thing to look for in a VPN is to find one that doesn’t log data. So no one will ever know your actual IP address and can’t compel ExpressVPN to disclose anywhere that you’ve visited on the web because they don’t log the data anyway. Now it’s not like I’m doing anything that I’m trying to hide, with the exception of streaming, but it’s still good insurance.