VPN's are a scam. I can see some use-cases where you're trying to access geo-fenced material (ie - you're in country A but you need to be in country B to access something). But if that's not why you are using it, you need to be aware that most/many VPN's are using your IP to route traffic from other users, and a lot of times those users are bots, and bots do a lot of things on the net. Send spam, port scan, probe, scrape and hack web servers.
As I scan the logs of my own web server, I constantly see examples of residential IP's in G-7 countries that are used by bots to access my site. I know they are bots by (a) the user-agent they use, (b) the files they are trying to access, (c) their IP checks out in third-party data bases (like spur.us). I've come across starlink IP's that were part of 14 different vpn networks!
There is even a term that is used in the industry - "ethically sourced residential IP's". In other words, when you sign up to use their service, they tell you that your IP will be used as part of a network where other users will have access to your internet connect. Who those users are - they won't elaborate, but some of them will be paying to access the internet through your IP to perform bot-like activity. This phenomena is talked about in some web-master forums.