SAME PROCEDURE AS LAST TIME!
It really can get to ones nerves...

There has been an update to 1.2 on 24.05.2022; why is it not on GOG?!

So the update is missing for more than a month now. No response on PM to developers, no response from GOG support (...).
After looking on Steam, I would say this game has been abandoned by the devs.

And one might add: the GOG customers have been abandoned by GOG...

Meanwhile version 1.3 is available on steam.

Sorry, but I can no longer take this developer seriously. No matter how small the studio is and no matter how busy the developer is - aren't we paying customers at gog.com?! It can sometimes take a while - okay. But months? Never.

In the end, GOG is responsible. When I buy from GOG, I make a contract with GOG and give them my money. They may have some arrangement with the developers about who loads up the patches (and when) to GOG, but they have to check that this is working correctly. And they should be aware of complaints.
However, it seems GOG does not care. And of course, this is not the only program that suffers from that problem...

I'll say; v1.3 has arrived. Delay time: only about 10 months. They are getting better...

Too less, too late.