https://docs.gravityforms.com/spam/#h-honeypot says:
“If HTML5 is enabled on the [Forms > Settings page] the autocomplete='off'
attribute will be added to the input”
but this was changed in 2.5 per https://docs.gravityforms.com/gravityforms-change-log/
Caused me to waste time worrying that something was broken until I came across the changelog.