Hi,
By default Odoo have no feature to do this. Instead we can handle this by inheriting the template.
For example :
Here is the inheritance of invoice report  template.
<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <data>
        <template id="custom_report_invoice_document"
                  inherit_id="account.report_invoice_document">
            <xpath expr="//div[@class='page mb-4']" position="inside">
                <!-- This will add a page break before the terms and conditions -->
                <div class="page-break"
                     style="page-break-before: always;"></div>
            </xpath>
            <xpath expr="//div[@name='comment']" position="before">
                <div class="page-break"
                     style="page-break-before: always;"></div>
            </xpath>
        </template>
    </data>
</odoo>
Hope it helps