I'm almost at the same stage that you are. I think that as powerful as traditional desktop operating systems have been, they are clearly less secure than mobile

I'm almost at the same stage that you are. I think that as powerful as traditional desktop operating systems have been, they are clearly less secure than mobile operating systems which sandbox applications. People have sensitive data on their devices, and it is simply far too easy to get harmful malware on your machine. Whether from an external developer becoming compromised, or actual malicious behaviour. I still download popular 3rd-party programs (i.e. not in the OS repos), especially if they are open-source (i.e. just GitHub), and there is evidence of active maintenance with a significant number of contributors to the project, or if it is from a reputable, popular real-life person. I think it is a real shame. I should be able to download any program and know that they aren't just going to be trawling through the files on my PC without the OS at least asking me (and so on). It's a tricky balance between sandboxed "useless" apps, and god-mode, but something that I feel desktop OS's need to focus on if their platform is to survive.