I totally assumed typing cadence and mouse behaviour was incorperated into bot detection for years before this already, interesting.
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I can tell you that as soon as you download Chrome and login to any Google account of yours, the captcha tests are suddenly and mysteriously gone.
Use firefox in full-lockdown mode, and you will be clicking fire hydrants and crosswalks for the next several hours.
My crazy conspiracy theory is that Google is just using captcha as an opportunity to force everyone out of privacy mode, further empowering the surveillance capitalism engines. The intent is not to be effective, but inconvenient.
Very few sites are broken by blocking Google's features, incidentally. Even Privacy Badger warns that blocking Google Tag Manager may break sites. It doesn't break anything important.