Hi,

See the below sample is given for the Products where you click on the menu the view will come with default filter Can be sold.  In the Context, you can see how the default filter is set,

    <field name="context">{"search_default_name_of_the_filter":1}</field>

The sample of the Product:

<record id="product_template_action" model="ir.actions.act_window">
    <field name="name">Products</field>
    <field name="type">ir.actions.act_window</field>
    <field name="res_model">product.template</field>
    <field name="view_mode">kanban,tree,form</field>
    <field name="view_type">form</field>
    <field name="view_id" ref="product_template_kanban_view"/>
    <field name="context">{"search_default_filter_to_sell":1}</field>
    <field name="help" type="html">
        <p class="oe_view_nocontent_create">
            Click to define a new product.
        </p><p>
            You must define a product for everything you sell, whether it's a physical product, a consumable or a service you offer to customers.
        </p><p>
            The product form contains information to simplify the sale process: price, notes in the quotation, accounting data, procurement methods, etc.
        </p>
    </field>
</record>

Thanks