Why not GoG?

[eisprinzessin]

From the Q&A transcript from summer 2022:

@medea_fleecestealer

Ramstab: is the game going to be launched on all platforms?
VivaLinux: Hello, Release on GOG is planned or not ?
emkyooess: GOG for the final release too? Please?
[Zantai:] Currently we’re focused on Steam, we’ll see about GOG down the line. Not currently, especially for early access.
emkyooess: I understand not for the indev/early access. But for final release, I hope I’ll be able to get it!
Medierra: Not sure I’ll do GOG… I like them but it was a lot of effort to support / integrate their galaxy stuff on GD for what is a pretty small chunk of sales

Now that Farthest Frontier has left Early Access they might be working on this. On the other hand they have been fairly busy:

@Zantai

This is the first time in the company’s history where we are concurrently developing 4 different projects, and we overestimated our own capabilities. As it turns out, time is finite and key developers cannot in fact be everywhere at once.

Then again I do not know, if GOG integration requires their key developers…