Sharing Apple Music within your Library

Without trying anything on a pc, since that’s always the easiest option to share music a create playlist (less clicks of the fingers) the only solution to quickly sharing music is by sharing a playlist. I haven’t fully figured out how to navigate through the Apple Music settings on an iPhone as much as I have on a Samsung device, but to be safe I noticed that on a Samsung device I have the option of a setting allowing any song I favorite or add to a playlist Automatically add to my library, making playlist for my daughters in the car I don’t necessarily want their songs in my library, these two features I haven’t been able to find navigating through my iPhone via the Apple Music app , I believe I found 1 of the 2 and that was the adding songs to playlist adds to library setting if I’m not mistaken, but not the favorite option, anyways, insuring that these 2!!! Options were enabled on a Samsung s22 device I logged back into an iPhone15, I sent over my playlist from one account to another, I added that playlist to my list of individual playlist, then I went to that newly added playlist and clicked add songs to another playlist and it had the option to favorite all the songs as well, now some of this may have been unnecessary but I was sick of searching so I took the long route making sure not to cut corners, once I knew those 2! Settings were enabled I was twice as sure this would be affective, doing it step by step this way was the quickest way I added 100s of songs without typing and clicking add to library a 100 times, I was curious if the other person deletes their playlist or their song from their favorites and library would I somehow lose it, I know it’s absurd but I just didn’t wanna take a chance so I tested it out to be safe, hope this helps, maybe trying it on a pc is easier bc you can maybe highlight thousands of songs an slide them over to a folder or something, I know you can do that with songs you’ve acquired through purchasing or downloading in some way so I haven’t tested this method yet.