As a QFieldCloud project creator, I want to be able to test my projects within QGIS, without having to sync my cloud project in QField to review the effects of the changes.

As the @cloud_username and @cloud_useremail attributes do not work in QGIS, when using these in expressions I have to set fallbacks using coalesce() for the expression to work at all, and I need to open the project in QField to test that it works as expected.