I would like the voucher section after the order review and not at the top of the page.
Also, please can you tell me, where to translate the email consent, as it is still in englisch.
We kept the coupon section at top (which is the default functionality) because it is a complete form in itself . Moving a form inside a second form (checkout form) will create issues.
For the language issue can you please share screenshot to which section you are referring ?Or you can try loco translate plugin and change the “words” to your required language.