A VPN isn’t going to protect you from malware or trackers. I’m not sure how they can get away with this marketing.
If you want to boost your security focus on your web browser
Good luck trying to explain to normies what a vpn is in 30 seconds.
A VPN does this, but for your internet connection:
Internet providers, governments and criminals can see what you are doing online, With VPN they can’t anymore.
Thats basically it.
Yeah I don’t buy it.
Instead of tapping individual connections, you now only have to tap the traffic to/from the VPNs exit nodes. Then you correlate incoming packets with outgoing packets (e.g. based on size, timing, etc) and you know the origin of the traffic.
Bonus is that it acts as a filter, people using a VPN want to hide their traffic so you specifically want to watch those people.