All the songs I have copied to iTunes get uploaded, but if you have the lossless versions they get converted to normal quality on other devices, or if you remove the local original copy.
Music doesn’t support flac, though, you have to convert them to alac first.
I also use a Mac, I don’t know if it’s different on windows
I do this on Windows, it works fine. Never had an issue with mass uploads / initial library sync. I have a large library of 30k tracks, mostly lossless ALAC.
I switched to Plex / PlexAmp though, it’s better and I don’t have to pay a subscription.
Yes they do play in the Apple Music app, but if you upload in bulk only 50% will actually be uploaded
All the songs I have copied to iTunes get uploaded, but if you have the lossless versions they get converted to normal quality on other devices, or if you remove the local original copy.
Music doesn’t support flac, though, you have to convert them to alac first.
I also use a Mac, I don’t know if it’s different on windows
I do this on Windows, it works fine. Never had an issue with mass uploads / initial library sync. I have a large library of 30k tracks, mostly lossless ALAC.
I switched to Plex / PlexAmp though, it’s better and I don’t have to pay a subscription.