I have not had any luck building a form with Cloudflare Turnstile that looks suitable on both mobile and desktop.

The same goes for Recaptcha, it impacts the design of the form.

I would like the ability to customize the position of the Captcha on a farm, or (ideally) have it work similar to the Mailpoet built-in Captcha where it displays after hitting the submit button.

Having the captcha displayed before clicking submit takes up a lot more page space, especially on mobile and I don't think it works as well as displaying it after submitting.