How-to discover database files space configurations on Azure SQL Managed Instance

NikoNeugebauer this is a great post! It helped me a lot, however, there are a few results that I would like to share with you and know your thoughts:

We have SQL MI with these settings:

Service Tied: Critical

vCores: 16

Storage GB: 320

I ran the query to know the database file sizes as shown in the image down below:

And there are a few things that pay my attention:

1. I am getting "-1" on my FileMaxSizeGB columns. Do you know why this is returning -1?

2. The FileGrowth is "NULL" for the Log files of my databases. Should we set this to 16 MB?

Thank you!