web/web_widget_many2one_simple/demo/res_partner_view.xml

<?xml version="1.0" encoding="UTF-8" ?>
<odoo>
    <record id="view_partner_form" model="ir.ui.view">
        <field name="model">res.partner</field>
        <field name="inherit_id" ref="base.view_partner_form" />
        <field name="arch" type="xml">
            <field name="industry_id" position="attributes">
                <attribute name="widget">many2one_simple</attribute>
                <attribute
                    name="options"
                >{'search': {'field': 'name', 'oper': '=' }}</attribute>
            </field>
        </field>
    </record>
</odoo>