PureVPN might be an interesting VPN to use on Chromebook. Still, in general, you should be able to install every VPN that supports Linux, as Chrome OS is a proprietary Linux-based operating system designed by Google.
Nevertheless, whether you want to use the VPN on Android, iOS, Windows, or Linux, you should try to install a native app from a VPN provider. You might read multiple opinions on “what is the best VPN”, but your opinion based on experience from using a specific VPN is the most important. Therefore, we recommend testing VPN apps on your device like Chromebook to ensure that you have a proper OS version and don’t have any other services that might impact the VPN service.
Related article: How to unblock websites on school Chromebook
How to unblock websites on school Chromebook