I'm unbiased towards the subject. I'm genuinely curious about how long-term FOSS ideology would work.
I'm using FOSS but I'd still consider myself a casual user. It seems like most FOSS I've seen is a free, buggy, alternative to mainstream software, which resolves a problem the user had.
From my perspective, (and do correct me if I'm wrong) FOSS doesnt seem sustainable. Everyone can contribute, but how do they make a living? My guess is they do other things for income. And what about the few contributors who do 90% of the work?
What if every software became FOSS? Who would put in the free labor to write the software to print a page, or show an image on screen, or create something more complex like a machine learning advanced AI software?
Would it simply be that everyone provides for each other? Everyone pitches in? What about people who have bills to pay? Would their bills be covered?
This concludes my right-before-bed psychology inquiry.
I think you may be misunderstanding the "free" part of FOSS. FOSS - also known
as free software - is free as in
freedom, not beer (this confusion is also why I refer to it as libre
software). It has nothing to do with money - it is all about having control over
the software that you use.
Some here have already pointed out the massive proliferation of libre software
that forms practically the entire foundation of the Internet, but I would also
like to mention that there are some projects that might even say that being
libre software has made it more sustainable; for example,
here's a
talk about how the GPLv3 (a copyleft libre software license) keeps the Samba
project alive.
There are certain monetization approaches that are infeasible with libre
software, yes, but I would argue that this is only ever the case with practices
that are anti-consumer. Games as a service is a
good example of this; I think it's absurd you can buy a game that you should
rightfully own indefinitely, only for it to become literally borked because it
was specifically designed to always be connected to the game company's servers
which could be taken down at any moment. With libre software? You have access to
the source code, so it's not impossible anymore to get your own server running
if someone else hasn't already made the necessary modifications to make it
happen.
The philosophy of (and reasons to care about) libre software isn't quite the
topic of this post so I won't elaborate too much on it (unless you want, of
course), but feel free to take a look at
this page which discusses just
that if you're interested.