I think so....
But this might help I've never seen it before. I got two notifications from play store, and when I opened the task switcher, the icons where different!
one has the play store icon.
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The other play store had this icon!!!
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Logged into same google account. One icon has the play store icon, the other has a small blue folder overlaying it.
And even the number of notifications in the blue circle over the bell icon, on each task window is different. I hadnt read any of them, just opened the store from the pull-down notifications list, dismissed the blue bubble telling me about where I can find some new setting/it's moved elsewhere. Then opened the next notification. No reading of any of those blue-bell-notices.
There are four unread in normal playstore and just one notification in the playstore with blue-folder icon.