I've bought quite a few albums as downloads from Bandcamp:
https://bandcamp.com/
I never bothered with iTunes and the like because they only offered music in compressed, lossy formats, often for a higher price than I could buy a physical copy on CD and have it sent by post - which, other than the fact that you get it instantly, made no sense.
Bandcamp sells physical copies on vinyl and CD, but also offers digital downloads in a variety of formats. Once you've purchase an album, or track, you can select which format you wish to download it in, they are all the same price. In addition, once you've purchased a track or album you can log into your account and download it at any time in any of the available formats that you wish:
View attachment 110070
I always choose the uncompressed WAV version and quite often I've been pleasantly surprised to find that I get a copy that is a higher bit rate and sampling frequency than CD standard, 16bit/44.1khz, but never lower.
The album above, New Light by Gidge was 16bit, 48khz.
The album Perplexagon by Kebu had both a 16bit, 44.1khz and a 24bit, 88.2khz versions of each track.
All Encores by Nils Frahm was 24bit, 96khz.
I know it's debatable whether you can hear any difference above 16bit/44.1khz, possibly even 320kbps MP3, but it's nice to get more than you bargained for.