Honestly 20 different companies would probably suck for the consumer. That’s 20 different storefronts to compare, 20 different libraries to manage, potentially 20 different sets of logins, 20 sources of data breaches. It’s unlikely they would adopt an open standard to allow a shared library. Maybe you have a 21st company that makes a product like heroic launcher. You’d likely run into regionality issues where a particular store is unavailable, so you may not be able to play purchased games. You would have all sorts of odd exclusive dlc and pre order bonuses so a cosmetic item you like could be locked to a store you haven’t used. Multiplayer likely wouldn’t be global cross play between all companies, you likely get some set of 20 companies working together for multiplayer. Some games may develop a good scene available to a single store, requiring a game to be repurchased. Exclusives or timed exclusives would be annoying to track, as each store would likely have different catalogs.
Honestly 20 different companies would probably suck for the consumer. That’s 20 different storefronts to compare, 20 different libraries to manage, potentially 20 different sets of logins, 20 sources of data breaches. It’s unlikely they would adopt an open standard to allow a shared library. Maybe you have a 21st company that makes a product like heroic launcher. You’d likely run into regionality issues where a particular store is unavailable, so you may not be able to play purchased games. You would have all sorts of odd exclusive dlc and pre order bonuses so a cosmetic item you like could be locked to a store you haven’t used. Multiplayer likely wouldn’t be global cross play between all companies, you likely get some set of 20 companies working together for multiplayer. Some games may develop a good scene available to a single store, requiring a game to be repurchased. Exclusives or timed exclusives would be annoying to track, as each store would likely have different catalogs.