But why.
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More seriously (and more relevantly), in the context of the current conversation about privacy and user autonomy, the correct answer to "why do you need to be able to do X" should usually be, "that's none of your business."
"Why do you need to run a VPN?" None of your business. "Why do you need to wear a mask?" None of your business. "Why do you have WebGL disabled?" None of your business. "Why does your browser not have this font installed?" None of your business.
A big part of autonomy and agency is that you don't need to ask permission or justify to anybody why you're doing the things you have agency to do. If you need to explain then it's not autonomy, it's permission. I don't feel I need anyone's permission to wear a mask indoors in a public space regardless of my reasoning (and in practice I'm never asked to explain, millage may vary but my experience is that nobody really cares). And similarly I shouldn't need Cloudflare's permission to run an obscure browser or to customize my computer setup.