Google is testing bolding the name of the business within the local panel in the search results. I was unable to replicate this but my screenshot shows my company name in normal text, while the test shows a bolded font for the company name.
Here is a screenshot from Khushal Bherwani he posted on X for us:
Here is what I see, in comparison:
I am not sure how much of a difference this will have on click-through rates or phone calls to the business but I guess "Google always be testing."
Forum discussion at X.