Not really, Linux evangelists are a thing because Linux is primarily held back by lack of adoption. A lot of common issues can be attributed to either:
1. The hardware manufacturer has never tested Linux support for drivers.
2. Some application that you need doesn't target Linux due to lack of users
This isn't everything, sure. But I think it's a majority of the headaches. Thus, Linux-users really want other people to also use Linux, so that companies actually give a shit about supporting it.
There's also the whole ideology involved. A lot of companies are increasingly pushing that you are not allowed to control the computer/phone/device you buy and Linux is at the forefront of combating this.
I don't think Linux itself is held back by lack of adoption at all. Android is the most popular mobile operating system in the world, last I checked. My dad doesn't know the difference between dir and ls, and he will only use an Android phone.
I would rather hug a fully grown crocodile than install Linux on my computer. But even I wouldn't deny that Android - and by extension Linux - is probably the best thing that happened to mobile devices.
Desktop Linux is lacking in adoption, but maybe that's because it's not packaged nearly as nicely as Android.
1. The hardware manufacturer has never tested Linux support for drivers. 2. Some application that you need doesn't target Linux due to lack of users
This isn't everything, sure. But I think it's a majority of the headaches. Thus, Linux-users really want other people to also use Linux, so that companies actually give a shit about supporting it.
There's also the whole ideology involved. A lot of companies are increasingly pushing that you are not allowed to control the computer/phone/device you buy and Linux is at the forefront of combating this.