After updating Chrome to version 76, I cannot figure out how to hide the \"Chrome is being controlled by automated software...\" notification overriding some controls on the
You can use --app=desired_address_without_brackets
flag, e.g. --app=https://google.com
. Works in Chrome 80.
Of course it works only if it's acceptable for your project to be launched in App mode and you have a page link you can insert there. See this answer of mine for a little more info.
You can also use --test-type
command line flag, which removes such infobars too.
Attention! In very rare cases it causes strange things like muting page sound! So I'm not sure I should recommend it in the first place.