I'm still used to buying games on steam.
Same deal, don't understand the position "i need create more content to release" when many games in steam like "Nothing" https://store.steampowered.com/app/2696480/Nothing/ and this game have a lot of content and mechanics and don't get released, so sad...
it's not all about practice, steam is not like others marketplace, it's not only the most popular platform, for only indie-developments, many big company today has released in steam their games like Activision/Blizzard - over watch, because steam have the biggest community, that can make game famous and popular, but today these game is a nugget of gold in Alaska.