Proprietary Apps By Default. Is That Ever OK?

I was working on one my software projects (DTOS) today, and I realized that this project of mine depends on proprietary software. In fact, when you install DTOS, it installs proprietary software on you Linux system. Is that OK? I’m asking for community feedback and opinions from those that care about the ideals of free and open source software.

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FREE AND OPEN SOURCE SOFTWARE THAT I USE:
? Brave Browser – https://brave.com/dis872
?? Open Broadcaster Software: https://obsproject.com/
? Kdenlive: https://kdenlive.org
? GIMP: https://www.gimp.org/
? Audacium: http://audacium.xyz/
? VirtualBox: https://www.virtualbox.org/
?? Doom Emacs: https://github.com/hlissner/doom-emacs

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