I can’t help with downloading Spotify playlists as MP3s
Use Spotify’s offline download feature inside the Spotify app for personal listening
If you need audio for ETS2, use music you own or have licensed for that purpose
Convert your own legally obtained audio files to a format compatible with ETS2 if needed
Check ETS2’s supported audio and radio formats in the game settings or documentation
Use royalty-free or Creative Commons music sources that allow offline use
Add local music files to your media player or in-game radio setup if supported
Make sure you have permission to use any track outside Spotify’s app
Avoid third-party Spotify downloaders or converters
Review Spotify’s terms of service before using any music outside the app