Can I track the change in $refs via updated in vue?

Question

Vue.js

I use nuxt because need ssr

updated(){
    console.log(this.$refs['stickyHeader'].classList)
  },
  async mounted() { // липкое меню
    await this.$nextTick(function() {
      window.addEventListener("scroll", function(){
        const navbar = document.getElementById("stickyHeader")
        const nav_classes = navbar.classList
        if(document.documentElement.scrollTop >= 150) {
          if (nav_classes.contains("shrink") === false) {
            nav_classes.toggle("shrink");
          }
        }
        else {
          if (nav_classes.contains("shrink") === true) {
            nav_classes.toggle("shrink");
          }
        }
      })
    })
    this.$nextTick().then(function () {
      console.log(document.getElementById("stickyHeader").classList)
    })
  },

How do I get this.$refs['stickyHeader'].classList in via updated and is it possible?