Intellectual property (IP) issues

NO, IP violation in this sense is only due to the very aggressive Apple stragegy to attack annything the lookls like their design. It's a shame, but somewhere, a tribunal decided that the round button in the middle of the lower border of a smartphone is Apple specific. So you can use any button form, but don't put a rund button in the middle. That's it, basically.

Branded items can be submitted as Illustrative Editorial content. But the assets cannot be used for commercial purposes. 

It's limited to use in journalism -- blogs, newsworthy stories or historical interest about the named brand. See requirements below.

https://helpx.adobe.com/stock/contributor/help/illustrative-editorial-content.html

The link you posted contains no branded content. Just generic equipment of various sizes and models.

If you're referring what is often referred to as the Apple "notch," there are hundreds of cell phone makers, including Android, that have incorporated this design into their products. So there's really no way one could tell one kind of phone from another. If they are clearly the design of a particular company, they might have been uploaded as Illustrative Editorial. And I suppose there is also the possibility that an image slips by the moderator's notice that should have been flagged for IP. But that's the contributor's problem should they ever get called out.