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.