This is becoming more prevalent because of AI bots, Cloudflares services anre actually one of the good guys with tools against bots.
People’s internet bandwidth has multiplied like crazy with all the AI companies stealing everything that goes online, and things like the turnstile do work to reduce that so people can still afford bandwidth.
This is the Dead Internet theory coming true. https://arstechnica.com/information-technology/2025/04/ai-bots-strain-wikimedia-as-bandwidth-surges-50/
Not sure, i haven’t seen it ever and I use a VPN on everything, Pi Hole at home, along with uBlock Origin and JShelter in Firefox on desktop, never been prompted with anything other than “click here”.