Hello @Randolph_Spiteri @Calum_Mackay
This is fixed. It shipped on 30 September in Roon 2.73.1, build 1696, which is now the production build on all platforms.
Please update and let us know if you still see it. The sidebar workaround is no longer needed, and Back from an album inside a curated playlist should return you to the playlist normally.
Release notes: Roon 2.73.1 Hotfix is Live!