Music favorites are saved from the built-in browser.

Open Spotify or YouTube Music inside the launcher, then open the exact item you want to save. This can be a single track, an album, a playlist, or another supported music page.

After opening the item, press the Favorites star button in the browser bar. The launcher will detect what kind of page is currently open and save it to the correct favorites category automatically.

For best results, open the dedicated page for the track, album, or playlist before pressing Favorites. If you are just browsing a list, the launcher may not know which exact item you meant.