Google rep once told me "It's called Performance Max and not Control Max".
— Boris Beceric (@BorisBeceric) September 20, 2022
Nice – but my favorite anti-bot method (worked since 2005) is to add a hidden field in the form. The click bots fill it out, but the humans can't see it. If it's got info in it – it's a bot. That doesn't affect the user experience at all.
— Brad Geddes (@bgtheory) September 15, 2022