@utility max-grow-* {
   .v-field__input {
      min-height: min(var(--v-input-control-height, 56px), --value([*]));
      min-height: min(var(--v-input-control-height, 56px), --spacing(--value(integer)));
   }
}

<v-textarea
   class="max-grow-32"
   auto-grow
   no-resize />