https://partner.steamgames.com/doc/features/keys
That's the policy on steam keys. If you are not using their steam keys it's not covered by their contract agreement at least.
The lawsuit is not yet finished and while we can take their complaints into account we can't take them for fact.
The case was already dismissed once because they argued the 30% was controlling the market but it's been there since day 1 of their storefront and has not changed to force game price changes. Beyond that they argue that Valve bought servers to take them offline to push players to them but... That's not really on this point of price controlling or the ability sell non steam keys.
Literally RuneScape does this by offering memberships not available on steam.
If you see something I am missing from the lawsuit please let me know, preferably without the hostility if you can manage.
So, you think a good way to correct someone is to directly insult them because you find their points unrelated but yours perfect? Rude. And the only thing steam controls via contract is the ability to sell your games via steam keys for price parity.
And you misunderstood my point. RuneScape isn't even on the epic game store so you aren't reading my words carefully. You are projecting your own hypocrisy.