There are occasional ways to use VPN tech in a way that improves privacy, but they are primarily a circumvention tool - a way to get around local censorship - unless you can be sure that both the incentives of the provider and the jurisdictions involved are more favourable to your own privacy than otherwise, then be skeptical.

In my experience, most people model security issues as broken windows or loose locks, something easily fixed with some care and attention.On the other hand, most security issues are better modelled as missing structural beams or sinking foundations, flaws that compromise the integrity of the entire structure and the safety people around and within.