Google seems to be testing multiple variations of how Google Posts show up in the Google search results recently. In the past week or so, I was notified of some examples of a new look for these Google Posts. Here are some screen shots I found over the past week showing either a link to view these Google Posts, a carousel slider, a boxy grid layout of many Google Posts to view.
Here is the box grid layout from @petrakraft:

Here is a carousel layout that looks a bit different on mobile from @mblumenthal:

Here is a link to view Google Posts elsewhere from @Matkacita:

Forum discussion at Twiter.

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