A VPN in one paragraph
A VPN (virtual private network) routes your internet traffic through an encrypted tunnel to a server somewhere else. Two effects: nobody between you and that server can read your traffic, and websites see the server's location instead of yours. That is the whole trick: encryption plus a different apparent location.
Why crypto players use them
Privacy is the legitimate case and it is a good one: public wifi is hostile territory, ISPs log browsing, and people moving money on-chain reasonably prefer not to broadcast it. If that is your reason, a VPN and Chips.gg coexist fine.
What a VPN does not do
It does not change where you live. Your eligibility to play is set by residency and verified by KYC, not by IP address, so a VPN neither helps nor hurts your standing. Full policy: Can I use a VPN on Chips.gg?
The three friction points
Login sessions. Switching VPN servers mid-session can invalidate your token. If the site misbehaves, disconnect the VPN first: see the invalid token ID error.
Shared endpoints. Popular VPN servers carry thousands of users, and some accumulate bad reputations that trigger extra security checks. Switching servers fixes it.
Game licensing. Individual providers enforce their own regional rules, so a specific game can be unavailable on one endpoint and fine on another. That is the provider's license, not a site bug.
A VPN is a privacy tool, not an eligibility tool. Use it for the first thing and it will serve you well.