I'm in a pretty similar boat except I frequently hit challenges. Especially if I use a VPN (which is more trustworthy than my ISP). Ironically, I'm using Cloudflare for DoH

I'd be surprised if Cloudflare were actually correlating DoH requests to HTTP requests following them, so I don't think that's a signal they are likely to use.

Probably not. In fact, it's probably a good sign that they are being accurate about that traffic being encrypted.

But I did find it ironic

> Your IP reputation must be bad.

And for an extremely large number of honest users, they cannot realistically avoid this.

I live in India. Mobile data and fibre are all through tainted CGNAT, and I encounter Cloudflare challenges all the time. The two fibre providers I know about use CGNAT, and I expect others do too. I did (with difficulty!) ask my ISP about getting a static IP address (having in mind maybe ditching my small VPS in favour of hosting from home), but they said ₹500/month, which is way above market rate for leasing IPv4 addresses, more than I pay for my entire VPS in fact, so it definitely doesn’t make things cheaper. And I’m sceptical that it’d have good reputation with Cloudflare even then. It’ll probably still be in a blacklisted range.

Why don't your ISPs just use IPv6?

I'm having lots of problems with fingerprinting protection on Librewolf and ungoogled-chromium. I use uBlock Origin and JShelter extensions on both. I'm always getting "your browser is out of date" despite always having the most newest versions.

Some sites like Stackexchange will work after just reloading the page. And rest of the sites usually work when I remove Javascript protection and Fingerprint detection from JShelter. Sill not all of them. So, they maybe/probably want to reliably fingerprint my browser to let me continue.

If I use crappy fingerprint protection, I'm not having problems but if I actually randomize some values then sites wont work. JShelter deterministicly randomizes some values using session identifier and eTLD+1 domain as a key to avoid breaking site functionality but apparently Cloudflare is beeing really picky. Tor browser is not having these problems but it uses different strategy to protect itself from fingerprinting and doesn't randomize values but tries to have unified values across different users making identification impossible.