Think about it like this. Runes were used by many tribes regardless of ethnicy. There were differences but these differences were like for example comparing French latin script with Slovak latin script. There werent any fundementaly different runes.

Altho Glagolica isnt rune it is pretty special alphabet and were used only among slavic people like; slavic speaking Istrians, Czechians, Moravians, Bulgars and Croats, etc.

Here one example;