I'm looking to replace my CD collection (it got stolen).
I'm would like to be able to purchase the music outright and download to my phone for offline playback.
Not really interested in a online streaming subscription service/anything with ongoing payments.
I haven't used anything like this since iTunes circa 2000 so things may have changed in 2 decades.
Thanks.
Things have definitely changed since the early 2000s.
There's a reason why music streaming services like Spotify or Apple Music have become so popular over the last decade and taken over the old market and method of buying each song/album individually; it's so much more convenient and it can work out to be cheaper as well.
Give it a shot, OP.
You can download the songs off Spotify and Apple Music for offline playback too if that's something that's really important to you. They aren't .mp3 files though, so you won't be able to transfer it to a USB stick or anything.