The ability to add filter controls to your charts in Data Studio is one of its coolest features. It would be even cooler if you could load a report with a filter control and a particular option pre selected. As far as I can tell, this is not currently possible, but here is a work around you might useful.
Earlier this year Google stopped giving users a choice when they wanted to create a mobile Property to use the regular Google Analytics platform or if they wanted to use Google Analytics for Firebase (henceforth just called Firebase). Now you only get the choice of creating a Firebase Property, and it left me wondering why on earth would they do that.