Easter mass Obligation

Hi everyone I was baptized Greek Orthodox as a baby and raised in the Greek Orthodox Church till i married my husband who is of an Eastern Catholic Rite I started practicing Catholicism and my kids are baptized Catholic. I have a question is regards to Sunday Mass obligations. This Easter the orthodox and Catholics will celebrate on the same day we always celebrate Orthodox Easter with my family and will be going to Orthodox Church. Is my family still required to find a Catholic Mass ? We will also be out of state my children are 2 and under so it would be difficult for us to go to church twice and find a Catholic Mass it’s much easier for us to join my family at Orthodox Church for Easter and we love going to Orthodox Church on Easter because we get the holy light that was flown in all the way from Jerusalem. My husband thinks we are fulfilling our obligation at the orthodox Easter service but I’m not sure according to Google we are not