Google has added a link in some of the local knowledge panels, including the hotel ones, that say “see other locations.” So when you are viewing a specific location, it lets you click a link to see other locations from the same or similar brand.
Brad Brewer spotted this change and posted it on Twitter. I was able to replicate this for a search on [hilton nyc]:

When you click the link, you get other locations:

I guess as long as a competitor doesn’t come up when you click it, you should be happy, right?
Forum discussion at Twitter.

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