Subnautica showing "Your free trial has ended. Hope you enjoyed it." when launching through...

Hello DarkLordofPing,

Unfortunately, I don't have any further troubleshooting to offer.

There are many knowledgeable users active on the forum and I hope that someone else can offer further insight on your issue.

Thank you.
I think worth giving this a potential solution a try:

Step 1. Delete the game from your PC, DarkLordofPing.
Step 2. Reset the Microsoft Store cache:

Press the Windows Logo Key + R to open the Run dialog box, type wsreset.exe, and then select OK.

Note: A blank Command Prompt window will open, and after about ten seconds the window will close and the Microsoft Store will open automatically.

Source: https://support.microsoft.com/en-us...n-t-open-126a875d-8b72-def1-0af6-d325276a058b

As the article recommends, it’s good to check if your system is up-to-date.

Step 3. Open the Microsoft Store and the Xbox app, then sign out from your account on both apps.

Step 4. You may want to restart the PC.

Step 5. Sign in with your account on both the Xbox app and the Microsoft Store, then, in the Xbox app go to My Library and once you find Subnautica, try installing the game that way.

PD: If possible, try installing the game on your C: drive.

It doesn't show up on the Microsoft Store library, but does show up on the Xbox app

Haha, my bad. I thought it was still on there.
But that leaves another problem. It seems like my ownership of the game doesn't transfer from Xbox to PC?
I just turned on my Xbox and booted up the game to be certain, and sure enough, it started just fine. On the PC app, it now shows both the green play button, and a buy game button. I've made sure that I'm logged in with the same account, in case that would affect anything.
Edit: Forgot to mention that the same error from before happens

Followed all the steps and it says the same thing it did the very first time "Your free trial has ended. Hope you enjoyed it. Get the app"