The maker of Vivaldi has bundled a well-known VPN in its web browser, giving additional security to users in a hassle-free way.

ProtonVPN is now integrated into the browser, but you'll need to sign in with your Vivaldi account to use it (Image Credit: Vivaldi)
Neowin reports that the service in question is ProtonVPN, which is a weighty name in the security scene, and a trusted brand (with a strict 'no logging' policy, as is expected from any good provider in this arena).
With the VPN being right there in the browser, there's no need for Vivaldi users to install any software, they can just flick a switch and benefit from encryption of their data, and of course online anonymity. Not to mention the other boons associated with a VPN (like being able to access streaming content you otherwise wouldn't be able to view, for example).
The one thing to bear in mind here is that while you don't have to install anything, you will need to log in to your Vivaldi account to use ProtonVPN (and if you don't have one, you'll need to create an account).
There are no major catches - no data allowance restrictions, or adverts served - but some premium features are reserved for paying subscribers. Notably, that includes your choice of server, which is limited with the free offering (obviously a freebie service won't give you everything).
As Vivaldi puts it:
"In an era dominated by Big Tech, Vivaldi and Proton represent a European commitment to digital independence, privacy, and transparency. By choosing Proton and Vivaldi, you're joining a growing movement that believes privacy is a fundamental right, not a privilege."