Changing data types that do not break query-folding in Power Query / Power BI

According to Microsoft's documentation, changing a column data type will break query folding.

This does not have to be the case though. It depends on your data source.

 I tested the following Power Query data types:

text, decimal, whole number, date and datetime.

These transformations were possible and would not break query-folding:

Decimal -> text

Whole number -> decimal

Whole number -> text

Date -> datetime

Date -> datetimezone

Date -> decimal

Date -> text

Datetime -> date

Datetime -> datetimezone

Datetime -> decimal

Datetime -> text

Text -> all transformations would break query-folding

My database was running on SQL Server 2016, other versions might behave differently.

If you have had any experience with this feel free to comment!