I use Linux and tons of other open source software daily. I have published and maintain a number of open source projects, and contribute regularly to others.
I also pay for closed source software and have a few proprietary apps that I sell.
There's a place for both models, they're not exclusive.
Crypto is bad though. If you can't see it, you're either one of the scammed or one of the scammers (in which case you can see it but pretend you don't).