Glide tables instead of Google Sheets for Templates

Does anyone know if it´s possible to use only Glide tables as data source for a template?
I am looking at the documentation and it does mention about using clean Google Sheets. I am just wondering if this is a must so that people can download a template, or is it just a suggestion? I would rather use only Glide tables if possible.

Using only Glide Tables is actually the preferred method for templates, and probably the only way they will get accepted. You have to consider the users that may not have a Google, Airtable, or Excel accounts, but want to buy a template. With Glide Tables, there is no restriction or extra requirements for the end user.