Glottalized fricatives if obstruents

Glot-03a: If the language has glottalized obstruents, does it also have a phonemic distinction between glottalized and non-glottalized fricatives?

This feature is described in the feature set Glottalized consonants.

It is authored by David Inman and Kellen Parker van Dam with Natalia Chousou-Polydouri and Marine Vuillermet and Anna Graff. cite