Google has started highlighting featured results in bold
A new kind of issue can be seen in extended snippets.
Usually Google uses bold to highlight keywords in snippets. But now this issue has begun to highlight products in extended snippets.
There is still no definite answer to such a selection. If it was just an advertisement, then it is unlikely that the same results were observed in other requests. For example, in this case. Google probably offers the most relevant options here.
There was no official Google comment on this innovation, but what do you think about this? Write in the comments!