odoo16/addons/hr_recruitment_skills/views/hr_applicant_views.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <record id="hr_applicant_view_form" model="ir.ui.view">
        <field name="name">hr.applicant.view.form.inherit.hr.recruitment.skills</field>
        <field name="model">hr.applicant</field>
        <field name="inherit_id" ref="hr_recruitment.hr_applicant_view_form"/>
        <field name="arch" type="xml">
            <notebook position="inside">
                <page string="Skills">
                    <div class="row">
                        <div class="o_hr_skills_editable o_hr_skills_group o_group_skills col-lg-5 d-flex flex-column">
                            <field name="id" invisible="1"/>
                            <field name="is_interviewer" invisible="1"/>
                            <field mode="tree" nolabel="1" name="applicant_skill_ids" widget="skills_one2many"
                                context="{'default_applicant_id': id}" attrs="{'readonly': [('is_interviewer', '=', True)]}">
                                <tree>
                                    <field name="skill_type_id" invisible="1"/>
                                    <field name="skill_id"/>
                                    <field name="skill_level_id"/>
                                    <field name="level_progress" widget="progressbar"/>
                                </tree>
                            </field>
                        </div>
                    </div>
                </page>
            </notebook>
        </field>
    </record>

    <record id="hr_applicant_view_search_bis" model="ir.ui.view">
        <field name="name">hr.applicant.view.search.inherit.skills.bis</field>
        <field name="model">hr.applicant</field>
        <field name="inherit_id" ref="hr_recruitment.hr_applicant_view_search_bis"/>
        <field name="arch" type="xml">
            <xpath expr="//field[@name='email_from']" position="after">
                <field name="applicant_skill_ids"/>
            </xpath>
            <filter name="refuse_reason_id" position="after">
                <filter string="Skills" name="groupby_skills" context="{'group_by': 'skill_ids'}"/>
            </filter>
        </field>
    </record>

    <record id="hr_applicant_view_search" model="ir.ui.view">
        <field name="name">hr.applicant.view.search.inherit.skills</field>
        <field name="model">hr.applicant</field>
        <field name="inherit_id" ref="hr_recruitment.hr_applicant_view_search"/>
        <field name="arch" type="xml">
            <xpath expr="//field[@name='user_id']" position="after">
                <field name="applicant_skill_ids"/>
            </xpath>
            <filter name="stage" position="after">
                <filter string="Skills" name="groupby_skills" context="{'group_by': 'skill_ids'}"/>
            </filter>
        </field>
    </record>
</odoo>