Also if you want some interesting soundscapes, I can recommend exploring mynoise.net. They have a huge variety of natural and artificial soundscapes, including a bunch of musical ones that are all tuned to be compatible with one another, so you can mix & match them. They also have a phone app, but you can only use one sound at a time with it. Also not everything is available if you don’t make a donation. I gave them 5 bucks a couple of years ago and it’s one of the best 5 bucks I’ve ever spent. It wasn’t hard to then spend a few more dollars on the app.
I use them for focus when I’m working, but lately I’ve also used them for sleeping. It works really well for me.
Honestly calling someone a “direct report” sounds even more dehumanising. At least calling someone a “subordinate” acknowledges that you’re belittling their existence. A “direct report” sounds like a piece of paper.