in fact, you only need to overwrite the style to fix it

mounted
mounted() {
  window.onresize = () => {
    return (() => {
      window.screenWidth = document.body.clientWidth
      this.tableHeight = window.innerHeight - 165
      if (this.widowHeight !== window.innerHeight) {
        this.handleSuitTableHigh()
      }
    })()
  }
  setTimeout(() => {
    this.handleSuitTableHigh()
  }, 1000)
}
// table
  handleSuitTableHigh() {
    this.widowHeight = window.innerHeight
    const tables = document.getElementsByClassName('el-table__fixed')
    for (const item of tables) {
      setTimeout(() => {
        item.style.height = parseInt(item.style.height) + 7 + 'px'
      }, 100)
      const wrappers = item.getElementsByClassName('el-table__fixed-body-wrapper')
      for (const wrap of wrappers) {
        setTimeout(() => {
          wrap.style.height = parseInt(wrap.style.height) + 7 + 'px'
        }, 100)
      }
    }
  },