Cypress Component Testing with Vuetify - Cannot read properties of undefined (reading 'props')

Question

I am trying to set up Cypress Component Testing for vuetify components. However, I do not get it working.

I narrowed it down to the most simple case with a static button. However I am getting Cannot read properties of undefined (reading 'props').

My Setup

// TestButton.vue
<template>
    <v-btn>TestButton</v-btn>
</template>

// TestButton.cy.js
import TestButton from './TestButton.vue'

describe('<TestButton />', () => {
  it('renders', () => {
    cy.mount(TestButton)
  })
})

//support/component.js - according https://docs.cypress.io/guides/component-testing/vue/examples#Replicating-the-expected-Component-Hierarchy
import './commands'
import Vuetify from 'vuetify/lib'
import { VApp } from 'vuetify'
import { mount } from 'cypress/vue2'
import { h } from 'vue'

const vuetifyOptions = {}

Cypress.Commands.add('mount', (component, ...args) => {
    args.global = args.global || {}
    args.global.plugins = args.global.plugins || []
    args.global.plugins.push(new Vuetify(vuetifyOptions)) 
  
    return mount(() => {
      return h(VApp, {}, component)
    }, ...args)
  })