Virtual Private Networks, or VPNs, are popular services for (supposedly) increasing your security and privacy on the internet. They are often marketed as all-encompassing security tools, and something that you absolutely need to keep hackers at bay. However, many of the selling points for VPNs are exaggerated or just outright
https://www.privacyguides.org/en/basics/vpn-overview/
If you want to real, reasoned, nuanced discussion of the benefits and costs of using a VPN. I cannot recommend privacy guides highly enough
Tldr: VPNs are great, at obscuring your local traffic from your ISP, but then the VPN can see your traffic. You have to think about the trade-offs in your scenario