Are zazas kurds ?

Hi, I live in Austria and my mother is half alevi from Tunceli ( eastern Turkey) but I was never in Turkey since shes relatively assimilated. My father is also serbian but I still got curious about this topic somehow. She considers herself as turkish alevi but I asked another question on reddit to kurds and they claimed that zazas ( her older family members speak this zaza language therefore its prob their heritage) are kurds ?