https://blog.cloudflare.com/eliminating-captchas-on-iphones-...
That’s the underlying problem here: web sites are constantly getting suspicious traffic and if you do something like using Tor or a “free” VPN, the owners of those sites are probably going to ask companies like Cloudflare to validate or block you rather than try to tell whether you’re a bot.
Anyone concerned with privacy really needs to be focused on that problem because most site owners care more about not going broke than supporting browsers or privacy tools which few of their customers use. It’s destroying the open web.