Google reCAPTCHA v3 & Google Analytics & Contact Form 7

Hi WP community members,
I’ve found a interesting case about enabling Google reCAPTCHA v3 in Contact Form 7 affect readings on Google analytics. Today I’ve enabled the v3 for 7 days, I want to share some reading here and know from you guys, if possible, whether my readings are generally similar to your sites:

• In reCAPTCHA v3 console (https://www.google.com/recaptcha/admin/), action “contact form” accounts for 55% of suspicious traffic of this action, it means average 55 of 100 requests labeled as “contact form” on my site is “non-human”. (I’m using the default setting, 0.5 score is the threshold)
• Start from Day 2 of v3 enabled, Google Analytics shows extreme drop of bounce rate from ~80% to unrealistically below 10%.

If you guys see the same drop of bounce rate on GA or anything about GA after v3 deployment, kindly share here for discussion.