I listened closely to “400 Lux” and I was able to notice the watermark on Spotify, Apple Music/iTunes Match, and Google Play/YTM, but it doesn’t exist on the CD. Another track from the same album, “Royals”, was reuploaded on Spotify and Google Play/YTM, but the watermark still exists on iTunes Match, but not on Apple Music.
Also, I may have heard the watermark on some post-2015 UMG releases. “Here With Me” by Marshmello has the watermark on Pandora, but it doesn’t exist on Spotify or Apple Music/iTunes Match. I was able to notice the watermark on Chelsea Cutler’s “Sad Tonight” on iTunes Match. It is unclear if the watermark is on Spotify or other streaming services.
There is a possibility of UMG’s watermarks coming back for Round 2.
5 Seconds of Summer’s song “She Looks So Perfect” has the UMG watermark on both Google Play and Apple Music/iTunes Match. It is unclear if it was reuploaded on Spotify.