People often talk about this “hassle”. I don’t see it. I often have this situation, my son is a musician. I’m on a laptop and insert the USB stick he gave me. I drag the file onto the face of Roon, the Roon remote copies th3 file to the Roon server, it’s added. Not identified, but added. It shows up in the upper left corner of my default view, which is Albums, sorted by Date Added. I click on it and play it. I don’t bother deleting it, because disk spac3 i# free. If I want to, deleting it is a few clicks, too man6 but that’s for safety,
The only extra step compared to any other player is the drag and drop.