@J-3804,Thanks for posting in Q&A.
From your description, I know that you want to disable Microsoft Store via Intune.
Based on my testing, you can refer the method @S.Sengupta mentioned.
Thanks for your kind understanding. If there is any update, feel free to contact me.
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.