app\Http\Controllers\Employee\ShowController.php

<?php
.
.
.
public function show(Employee $employee)
{
//  $employee->load('projects');
    
    // Cara 1
    $employee = $employee->with('projects')->first();
    
    // Cara 2 (recommended)
//  $employee->load('projects');  
    // dd($employee);
    
    return view('employees.show', compact('employee'));
}

resources\views\employees\show.blade.php

@foreach($employee->projects as $project)
  Name : {{ $project->project_name }}
@endforeach