How to forget specific session when user's login with authentication from Jetstream

Alternatively, instead of using authenticateUsing (which does not handle throttle, 2fa etc.) you can customize Fortify login pipeline as below:

https://jetstream.laravel.com/2.x/features/authentication.html#customizing-the-authentication-pipeline

// JetstreamServiceProvider.php
use App\Actions\DoSomeThingMore;
use Illuminate\Http\Request;
use Laravel\Fortify\Actions\AttemptToAuthenticate;
use Laravel\Fortify\Actions\EnsureLoginIsNotThrottled;
use Laravel\Fortify\Actions\PrepareAuthenticatedSession;
use Laravel\Fortify\Actions\RedirectIfTwoFactorAuthenticatable;
use Laravel\Fortify\Fortify;

// ...

public function boot()
{
  // ...

  Fortify::authenticateThrough(function (Request $request) {
      return array_filter([
          config('fortify.limiters.login') ? null : EnsureLoginIsNotThrottled::class,
          RedirectIfTwoFactorAuthenticatable::class,
          AttemptToAuthenticate::class,
          PrepareAuthenticatedSession::class,
          DoSomeThingMore::class
      ]);
  });
}

And, the DoSomeThingMore class could have something like this:

<?php

namespace App\Actions;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Log;

class DoSomeThingMore
{
    /**
     * Do Something Here the incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  callable  $next
     * @return callable $next
     */
    public function __invoke(Request $request, $next)
    {
        $request->session()->forget('coupon_applied');
        Log::info(auth()->user());
        return $next($request);
    }
}