Can Azure MS SQL be used as an external database?

I want to use Azure MS SQL (not MySql) as an external database for our Wix Sites. Here is the Git repo for the MySQL adapter:

I found these instructions, that are for MySQL, but say that MS SQL is supported:

I tried to follow these instructions but set up MS SQL instead, but the docker container is getting an error. I’ve spent a lot of time trying to troubleshoot it.

My question is: is MS SQL supported? Has anyone actually done it?