For me DLCs are present (as PE exe's) when I initially open a download window, but they are vanishes if I manually select Linux OS. Probably that explains bonuses being gone for you as well. (Obviously, it doesn't excuse exe files)

Since I am still seeing this issue and I didn't see anyone confirming that they actually submitted a support ticket...

I went ahead and did so. Also very annoying that the ticket page forces you to submit a 'system report' even if you are just reporting issues with downloads...

notes from ticket:
"Steps to recreate:
1. In Firefox, I login to my account and go to Profile > Games > search for pathfinder
2. I click on the link for Pathfinder: Kingmaker
3. It correctly defaults to my personalized settings: "System: Linux Language: English"
4. Under "Download game installers", all the links in the "Game installers and updates" section seem ok (they are *.sh files, as normal for GOG Linux downloads).
5. Under the "DLC installers:" section, I see 2 links:
In-game player's portraits:
and
Kickstarter Tier 2

however, clicking either link begins downloading a Windows exe file instead of a Linux sh file.
See attached (Selection_012.png)

If I then change the OS dropdown to Windows, no DLC section is listed (or else it is displaying offscreen... but I did scroll down as much as it lets me) - see attached Selection_013.png. Changing it back to Linux again, then displays an error message - see attached Selection_014.png:
Unfortunately, there are no files available for the selected language (English) and operating system (linux) combination."

let's see if they fix it...

Latest update in the ticket:

"...there's apparently some technical problem with the Linux installers. Devs know the issue already, and are working on it..."

As the game itself appears so darn buggy, I won't fuss about the DLC until those game things are fixed first.

I bought the Imperial Edition and still no sight of bonus Premium Digital Download DLC.

It's frustrating when you pay in advance for pre-order bonuses or extra money for all the premium bonuses and they fail to deliver what you paid for.
Well, this should be the top priority if they want to gain the trust of their customers and avoid refunds.

Game bugs are owlcat team fault, while missing bonus it entirely on gog.com
So there it surely can be done in parallel.

I don't believe so, or at least I don't know up.
I had poked Support once by just replying to the Email I got when I opened the ticket, and lo and behold I got a response the same day, something like "is this still an issue?". I replied "Yes of course", and then nothing.
A couple days back I poked them again, this time to be given the reply I posted above. It's slow going at best.

OK thanks, I'll try poking them again tomorrow.

BTW, does anyone remember what so cool is in this bonus pack?
Owlcat pet is nice to have,
Hat? Is it of any use?
Smth else is there I believe.

Nothing new.
Patch 1.10, DLC still .exe files. No news from Support, ticket has now been closed due to "inactivity".

This is quite a clown show, really.

1.0.11 is out for Linux (not as patch, but as full download, of course) and the DLC is: Still .exe

I mean, c'mon, honestly. Who goes and uploads version after version of DLC and does this despite it clearly being the wrong file format?

Alright, so here's the most recent update on my ticket

"Unfortunately, there are no Linux-compatible DLCs available for the game at this
time. I am afraid I am also unable to give you an estimated release date for now.
I apologize for the inconvenience."

That's... unfortunate, to say the least. It kinda also doesn't really explain, why there's DLC files for Linux on GoG (just the wrong kind) instead of, well NO files. (Ah, that's been changed, they are now indeed gone).

I had also sent a mail to owlcat on their technical mail addy. So far, no reply at all.

Oh please.... new patch, and BAMM, the DLC is back. Of COURSE as a .exe. Come on!

Small update, with really nothing new in it. So, call it a "n-update"? I dunno...

Game version is now 1.1.0h, same for the three DLC files. Which, totally surprising, are all still Windows .exe files. Huh...

Well it seems I have the red panda and the others item in my game on linux