Repro: https://github.com/DrJume/vue-volar-eslint/blob/17fc9afea8a7386096478c5742fd86140baaed64/src/App.vue#L12
I have setup a working example for the new ESLint integration from Volar.
Currently it works for basic TS type aware rules, but ESLint still has issues to understand the type of an imported Vue SFC (which Volar in VSCode understands).