@Kristoffer Park Rosdahl, Thanks for posting in Q&A.
According to my search, currently, Linux is eligible to Compliance Policy. It may be that this article has not been updated yet, because Intune has already supported the deployment of compliance policies for Linux devices in March 2023.
https://learn.microsoft.com/en-us/mem/intune/protect/compliance-policy-create-linux
Hope above information can be helpful.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.