Not on Steam or Bandcamp, because they are done directly through a simple admin interface… but the ones that propagate to iTunes, Amazon, Spotify, YouTube Music etc yes they are a horrible pain to update because unless you are a huge record label with direct access to all those different backends, they go through a variety of middleware services, none of which are comprehensive in their tools or feature set. Many of them also have intrinsic hooks to their storefronts which are still hardcoded to assume pricing based on CD-length albums, which is part of why many soundtracks have just given up and release in “volumes,” even though for all intents and purposes it should be one album in the digital era. We tried to avoid that for the Skunkape soundtrack rereleases but eventually just decided to split the albums up on those services. (On Steam and Bandcamp they are single albums without volume distinctions.)