MUI: make button with link look like normal button

I have a button to download a file with a filename. To do that I wrote this:

<Button
  color='primary'
  href=`/apiproxy/objects/${id}/subobjects`
  LinkComponent={React.forwardRef((props, ref) => <Link {...props} type='text/csv' download={`object_${id}_subobjects.csv`} ref={ref} />)}
/>

The resulting button looks the same as my other buttons which don’t have href attribute (also with color='primary'), but on hover its text changes colour to blue, unlike with the other buttons, where it stays white.
What would be the best way to make it styled the same as other buttons? I can specify &:hover text colour to white, but that will break when theme changes the text colour of other buttons.

Is there a way to change the Link component to make it styled the same as other buttons, or if not, what in the palette do buttons use as their hover text colour so that I can set it to that?