Spotify has almost every song on the planet
Until a contract negotiation with UMG goes south and they lose half the catalog overnight. See what’s happening on tiktok right now for a good example of this.
I understand the convenience draw, but I’m not a fan of continually paying for content that can disappear at any moment.
Endeavour’s current iso is still KDE 5 and X11, but if you do an online install it will default to 6 and Wayland. Just make sure to connect to the Internet before starting the installer.