I also prefer Turnstile than hCapture. I was greeted by the latter a lot in the past, and they were hard to solve, especially when a non-English language was used. Language and culture differences sometimes made it difficult to understand what was in the pictures and what answer was expected.
However I see that the hCapture plugin has support for Google’s reCaptcha? If that’s the case, maybe just sed the URL and it can be replaced by Turnstile?