@Admin Welcome to Microsoft Q&A Forum, Thank you for posting here!
Unfortunately the feature is not yet available for Azure files. Supported UNC path format is \<storageAccountName>.file.core.windows.net\<fileShareName>
Refer to this Q&A thread for more understanding.
Note : Azure is working on a new Self-Serve option for customers to share and vote on product feedback. When available, you will be able to go to https://feedback.azure.com/ and share/up-vote product feature ideas.
We will share and elevate your feedback with the Azure Files product team.
Please let us know if you have any further queries. I’m happy to assist you further.
Please do not forget to "Accept the answer” and “up-vote” wherever the information provided helps you, this can be beneficial to other community members.