Dolby Atmos music quieter than non-Atmos songs

With the recent Dolby Atmos update on Windows, I tried listening to Dolby Atmos songs. I have a playlist of songs that contains Dolby Atmos songs as well as non-Atmos, lossless songs. Usually, I have my Apple Music volume at ~50%, but when I listen to Dolby Atmos songs, I have to set the volume to 100% to get a similar loudness as a non-Atmos song at 50%. This is not ideal because at 100%, non-Atmos songs are way too loud and I have to turn the volume back down for those.

I have tried listening with Sound Check on and off, and the loudness issue persists either way.

Another strange quirk is that the audio has the correct loudness for a moment (less than a second) when starting the song or skipping forward, but then the loudness lowers again and stays there.

Anyone else have this issue or know how to fix it?

I'm on Windows 11 24h2, Apple Music 1.5.4.79.