Hi,

You can try the following

js>>

import { registry } from '@web/core/registry';

import { formView } from '@web/views/form/form_view';

import { FormController } from '@web/views/form/form_controller';

export class FormClassController extends FormController {

    setup() {

        super.setup();

        console.log(this,'FormClassController',this.template)

        owl.onMounted(() => {

            let textField = this.__owl__.bdom.el.querySelector('.text-field')

            textField.innerHTML = 'Hello World';

        })

    }

}

registry.category('views').add('form_class', {

    ...formView,

    Controller: FormClassController,

});

xml>>

<field name="model">project.task.details</field>

        <field name="arch" type="xml">

            <form js_class="form_class">

                <div class="text-field"/>

    </div>

    </form>

    </field>

 Js_class allows you to access the backend view and customize it according to your needs. Now every time you create a form view just add the js_class of 'form_class' and add a div of class 'text-field' or you can find an alternative way to show your view using the `js_class`

Hope it helps