When Richard created GNU doesn't had one free operating system. The only way
was do GNU with non-free software but today you can do animation or another
with only free software.
You compare different things. Non-free BIOS is hard to change and if you
really want you can try buy one compatible mother board and install yourself.
I use only free software for graphics, office, internet, audio and more but
the most uses softwares from Adobe, Corel, Autodesk, Microsoft, Apple, etc.
So everybody here needs to use non-free software because the market uses it?
I said in another comment: "you can do all or the most with only free
software, you need to search the better solution for you."
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One tip: try Synfig, Blender or another for animation.