Here’s a weird one for you. Instead of a phone and “call” feature in the local 3 pack, I discovered a new one with business images.
I was on mobile and accidentally used google.com instead of google.com.au.
Searching from Google Australia (google.com.au) brings up a normal 3 pack without the business images.
At the moment, I am not sure if Google is testing a new format, or if it only affects people conducting search queries in other countries.
I tried some additional searches but only saw this affecting optometrists in Brisbane.
I can’t imagine Google would test this intentionally or take away the click-to-call phone icon for mobile users…