suite/project_acceptance/report/project_report_template.xml

<!-- <?xml version="1.0" encoding="utf-8"?>
<odoo>

    <template id="report_project_task_document">
        <t t-call="web.external_layout">
            
            <t t-set="doc" t-value="doc.with_context(lang=doc.partner_id.lang)" />
            <t t-set="address">
                <div t-field="doc.partner_id"
                    t-options='{"widget": "contact", "fields": ["address", "name"], "no_marker": True}' />
                <p t-if="doc.partner_id.vat"><t t-esc="doc.company_id.account_fiscal_country_id.vat_label or 'Tax ID'"/>: <span t-field="doc.partner_id.vat"/></p>
            </t>
            <div class="page">
                <div class="oe_structure"/>
                <h2 class="mt16">
                    <span> Task # </span>
                    <span t-field="doc.name"/>
                </h2>
                <div class="row mt32 mb32" id="informations">
                    <div>
                        <strong>Task Date:</strong>
                        <p class="m-0" t-field="doc.create_date"/>
                    </div>
                </div>
                <div class="row mt32 mb32" id="informations">
                    <div>
                        <strong>Responsible User:</strong>
                        <p class="m-0" t-field="doc.activity_user_id"/>
                    </div>
                </div>
            </div>

        </t>
    </template>

    <template id="report_project_task">
        <t t-call="web.html_container">
            <t t-foreach="docs" t-as="doc">
                <t t-call="project_acceptance.report_project_task_document" t-lang="doc.partner_id.lang"/>
            </t>
        </t>
    </template>

</odoo> -->