Hey @muxens ! 🙂
I hope you are enjoying your time in the Community!
It is currently not possible to download albums offline in the desktop app - as referenced in this support article.
There is a live idea though that you can vote on -or follow- to possibly see this implemented.
Hope this was helpful and have an amazing day! 🙂
A new desktop app update with a new design is currently rolling out to all users. One of the new features is the ability to download albums and podcasts just like you can in the mobile app.
You can read more info about the new desktop app in this news article:
The desktop team also has a blog post in the community about it: