Ironically this is actually an example of Valve using its dominant marketshare to suppress rivals - Steam’s ToS require devs to have equivalent pricing across all storefronts if they want to sell on Steam at all, so making it harder for cheaper storefront cuts to translate to lower prices to consumers, who might otherwise move to a different storefront.
Devs aren’t going to drop Steam as a store, so they’re stuck.
Ironically this is actually an example of Valve using its dominant marketshare to suppress rivals - Steam’s ToS require devs to have equivalent pricing across all storefronts if they want to sell on Steam at all, so making it harder for cheaper storefront cuts to translate to lower prices to consumers, who might otherwise move to a different storefront.
Devs aren’t going to drop Steam as a store, so they’re stuck.
Do you have a source for that claim that doesn’t reference the sale of Steam keys specifically?