Use hCaptcha for sign up and other sensitive parts of your application.
hCaptcha has bad UX, their dataset is way harder to decipher and commonly takes me three or four tries to get around on Cloudflare, if it doesn't keep failing with a server error which I've had happen on multiple, distinct occasions.
At least for Google, I was done in one turn when lucky, if I had no other choice (e.g. banking).
At least hCaptcha has a decent chance of letting me through if I answer correctly.