Best use-case for vpns [free plan]

Use a VPN if you want to obfuscate your ISP from knowing where online you go and what you do. If this is important, use a VPN. If not, encrypted DNS should be enough along with always on HTTPS in the browser. I always recommend people to always use a VPN. No harm in doing so and it only provides benefits. PG has great info (videos and write ups on VPNs. Once you read them, that’s pretty much should be enough for you to decide if you need or want to use it or not.