They let Valve know in advance I’m sure, it’s a small industry and the polite thing to do with friends.

Absolutely, especially since they already work together. I don't think there is anything wrong with this, but it made me think, when does it cross the line into collusion or price fixing?

Other articles on hn mention correctly that right now in technology monopolies are the norm and anti-trust is dead (maybe a little dramatization there).

The 30% cut from distribution platforms is arbitrary, not based on cost, but rather implicit collusion based on what apple can extract from their flock.

I'd say this Epic launcher is a great exception to this and I hope it sticks.

When the prices are the same :) But I don't think they told them the prices, just that they were going to announce a store.

What HN post yesterday?

Greyaliengames posted a blog about the steam marketplace algo killing sales