Do you use VPN or not?

It really depends on what you're doing. Most activities online don't need a VPN as encrypting your traffic is very unnecessary unless there is a concern with either your ISP knowing what you're doing or the service you're connecting to knowing what you're doing and who you are.

Be sure to also see what the VPN's policies are on encryption as well as logs and storing data. Some VPN companies store logs which can be pulled by law enforcement.