I've done the same but my problem is that a lot of artists (labels?) only made their songs available to purchase on itunes and google music. Now there's only itunes which of course only works with the native app and doesn't have Linux support.
Well, as far as I'm concern, if they only provide content with DRM, then piracy is fair game. I pondered for a time if I should buy the content on abusive platforms and then download it illegally without DRMs, but I decided that respect must go both way. Just to be clear, I pay for a lot of music every week and I even give a lot every months to charities, this is not about money and my difficulty to part with it. Ultimately, I very rarely use piracy anyway because when I have to, I lose respect for artists and don't want to listen to them anymore (it's not me making it political, it's just a feeling that happens when I realize the artist will force spyware on me). The only content I download through piracy is from long dead artists, mostly (they didn't chose to only be available with DRM).
That being said, I've been surprised how common it is to find albums on Bandcamp or bands' own sites. It may be the music I listen to (I try to never limit me to a few "genres", but I very commonly listen to music with small audience). I guess fees asked by platforms have something to do with it too.