How locked down are desktop apps now on Mac, Windows and Linux? I haven't kept up. Do they still a lot of access by default to do malicious things with? I recently saw someone install the Adobe Acrobat desktop app and it installed its own extension inside of Chrome without asking. Games can have scary DRM as well.
Chrome extensions can't read/write to arbitrary places on your hard disk without asking for example and you can isolate them within separate profiles. Not saying they're perfect but there is robust sandboxing of what they're allowed to do. I'm curious how this compares to an Electron-based desktop app i.e. which is running Chrome on the inside but with the standard restrictions Chrome places on tabs and extensions unlocked.