As far as I know Apple will still sell you individual tracks (DRM free, I think?), though it’s a bit hidden.

Apple has neglected the iTunes store for years. Yes, you can still buy tracks, but it's really crappy. 1) The catalog is nowhere near as extensive as Apple Music. 2) It's AAC 256kbps format only. Not lossless.

Apple goes along with the enshitification of everything and wants you to rent your music, not own it.