I'm not talking about how it is today, I'm talking about how I think it should be in the future. Of course there are reasons why the things are like they are today, but that doesn't mean they shouldn't or can't change.
Someone buying a Windows laptop or Android phone for example doesn't need to check if that OS is well supported on that hardware or whether they will get official support for it. The device comes with the OS and the manufacturer guarantees that it will work, that is what we should achieve for desktop Linux as well. E.g. those dev machines with Linux preinstalled and officially supported by the OEMs are a great step in the right direction, but we need that for the regular consumer across a wide range of devices!
Unofficial versions are versions created by the community because the manufacturer of a software doesn't officially support it on your platform. A simple example would be Flatpaks for Discord or Teams, or running games with Proton or regular programs with Wine. If it works it works, but the original devs won't invest any time to improve it, and they might even break things in new releases because it's just not on their radar.
And many of my friends and family do think about privacy a lot, but most of them just cannot fully migrate to Linux without extensive and continuous help from me or other techy friends/relatives. They cannot fix a broken boot or a game that won't launch unless you tweak the configs! They can use a preinstalled Windows or macOS however, and they can call/write the support of whatever they want to use if it doesn't work. There is no reason desktop Linux can't reach the same level of official consumer support, and it needs to in order to be a true alternative for regular people. They should not have to sacrifice comfort for privacy and freedom.