purchase_order_views.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <record id="purchase_order_view_tree" model="ir.ui.view">
      <field name="name">purchase.order.view.tree (in purchase_stock_usability)</field>
      <field name="model">purchase.order</field>
      <field name="inherit_id" ref="purchase.purchase_order_view_tree"/>
      <field name="arch" type="xml">
          <xpath expr="//field[@name='invoice_status']" position="before">
              <field name="picking_status" decoration-success="picking_status == 'received'" decoration-info="picking_status == 'to_receive'" decoration-warning="picking_status == 'partially_received'" decoration-danger="picking_status == 'cancel'" widget="badge" optional="show"/>
          </xpath>
      </field>
    </record>

    <record id="purchase_order_view_search" model="ir.ui.view">
      <field name="name">purchase.order.select (in purchase_stock_usability)</field>
      <field name="model">purchase.order</field>
      <field name="inherit_id" ref="purchase.purchase_order_view_search"/>
      <field name="arch" type="xml">
          <xpath expr="//filter[@name='order_date']" position="before">
              <filter name="received" string="Pickings fully received" domain="[('picking_status', '=', 'received')]"/>
              <filter name="partially_received" string="Pickings partially received" domain="[('picking_status', '=', 'partially_received')]"/>
              <filter name="to_receive" string="Pickings to receive" domain="[('picking_status', '=', 'to_receive')]"/>
              <separator/>
          </xpath>
      </field>
    </record>
</odoo>