[Vuejs]-How to make component not re-render when next page

Maybe you could try creating a copy of the items to prevent triggering reactivity.

getSitebarItems() {
    let data = sidebarItems.slice();
    if (this.role == adminRole.OWNER) {
      this.dataSidebar = data;
      return;
    }

    data = data.filter((element) => {
        return element.onlyOwner == 0;
    });
    this.dataSidebar = data;
}