3. Discover Weekly stuck recycling through the same songs over and over again (it's also years since the algorithm found anything new for me, apart from name collisions)
4. Geo-language-locking. My CC will apparently only be accepted with its registered address in Spain. I barely speak a word of Spanish and don't have interest in the music popular in Spain. Yet it's what they keep pushing me, especially podcasts (including any episode in generated lists). Long-standing issues on all their community forums for this, eg https://community.spotify.com/t5/Live-Ideas/Browse-Allow-to-...
I recall a 100+ page forum thread on 4 but can't seem to find it now.