Yes, it's fine, but it shouldn't be necessary. If Windows and Mac OS just had native support for always-on-top windows, you wouldn't need it.
I actually prefer macOS's PiP handling compared to other operating systems. In that it's a blessed concept that only goes to one corner of the screen and can be shunted out of the way easily.
I actually prefer macOS's PiP handling compared to other operating systems. In that it's a blessed concept that only goes to one corner of the screen and can be shunted out of the way easily.