I've wondered if it isn't intentionally impossible to solve, because "the algorithm" decided that you're a bot or malicious and they want to spin your cycles endlessly. The affect on me know is I won't even try anymore, I'll just take a different route. That may even reinforcement teach the system that I was a bot that couldn't solve it
I think it's more malicious than that. They know I use privacy tools and can't be tracked -> they can't make money on me -> bully me into not using their service.
It may also be part of their anticompetitive war on other browsers. I get captchas constantly in a new default Firefox profile, but not in a new default chrome profile. Spoofing user agent to recent chrome agent in Firefox makes the captchas happen far less often for me.
