I built my own web app to listen to full albums while allowing me to take breaks and switch devices. I really like to listen to albums from front to back but I found that at least YouTube Music doesn't remember playback position and you can't just switch devices without pulling up the album again on the other device and finding the position where you left off. My web app lets me paste a URL that is then downloaded to the server using yt-dlp and can be streamed from there. It always remembers playback position so I can listen from the phone in my car and then continue on the laptop at work from where I left off. It also works great for adding mixes from other sources such as NTS Radio - one of my favorites.

You've just described one of my biggest frustrations with YouTube Music, wishing I could save queues and switch devices more seamlessly.

Would love to take a look at your web app if it's available