Okay, so this takes me back. Remember when a VPN extension was basically just a proxy for your browser and everyone knew it was kinda janky. The data tells a different story now. Some providers have actually built their extensions to be pretty solid, routing all browser traffic through their network with the same protocol as the desktop app. But that's the key - it's only some. From my experience testing these for affiliate offers, you gotta compare by provider. Nord's extension now is basically a light version of the app, while others are still just a fancy proxy that leaves everything else exposed. For streaming and quick privacy, a good extension is fine. For torrenting or anything serious, you still need the full app. TL;DR, it's not 2015 anymore, but don't let the convenience fool you into thinking you're fully covered.