Thank you for contacting Google Cloud Support. I understand that you need to move a Gmail label to Google Drive so you can share it.
As a recap of our conversation, currently we do not have any option or workaround to move a Gmail label to Drive. I would suggest to submit this idea to our developers so they can create this option. I already requested to grant you access so you can submit this idea. This access can take 24 to 48 hours to be granted. You will be able to submit the Feature idea by accessing the following URL
It was a pleasure to assist you. I’ll keep this case open for the next three business days so you can let me know if additional assistance is needed. Once the case closes, you can reply in the next 30 days to reopen it. Have a nice day!