Override ->registration() in PanelProvider

<?php

namespace App\Http\Controllers\Auth;

use Illuminate\Auth\Events\Registered;
use Filament\Notifications\Notification;
use Filament\Pages\Auth\Register as AuthRegister;
use Filament\Http\Responses\Auth\Contracts\RegistrationResponse;
use DanHarrin\LivewireRateLimiting\Exceptions\TooManyRequestsException;

/**
 * @property Form $form
 */
class Register extends AuthRegister
{

    public function register(): ?RegistrationResponse
    {
        try {
            $this->rateLimit(2);
        } catch (TooManyRequestsException $exception) {
            Notification::make()
                ->title(__('filament-panels::pages/auth/register.notifications.throttled.title', [
                    'seconds' => $exception->secondsUntilAvailable,
                    'minutes' => ceil($exception->secondsUntilAvailable / 60),
                ]))
                ->body(array_key_exists('body', __('filament-panels::pages/auth/register.notifications.throttled') ?: []) ? __('filament-panels::pages/auth/register.notifications.throttled.body', [
                    'seconds' => $exception->secondsUntilAvailable,
                    'minutes' => ceil($exception->secondsUntilAvailable / 60),
                ]) : null)
                ->danger()
                ->send();

            return null;
        }

        $data = $this->form->getState();

        $user = $this->getUserModel()::create($data);

        app()->bind(
            \Illuminate\Auth\Listeners\SendEmailVerificationNotification::class,
            \Filament\Listeners\Auth\SendEmailVerificationNotification::class,
        );
        event(new Registered($user));

        session()->regenerate();

        return app(RegistrationResponse::class);
    }
}

return $panel
            ->default()
            ->id('admin')
            ->path('admin')
            ->login()
            ->registration(Register::class)