Yes, its the dialect of Florina, Greece (or known as Lerin in slavic).  Where ethnographers have described it as slavophone greek, slavic-macedonian, or western bulgarian.  Take your pick lol.  The dialect originates very close to Tzar Samuil’s headquarters of Prespa.  From my understanding the dialect probably extends as south as Kastoria (Kostur), and to the East as far as Edessa (Voden) and Kilkis (Kukush).  However the dialect is facing extinction in Greece, as its largely been hellenized. I visited in greece, and you can still hear it sporadically in Florina.