The MDB4 Angular and MDB5 Angular are different products with separate documentation, MDB4 documentation can't be used for MDB5 components. You would need to check the documentation of both products and decide which one suits your needs better.

Could you please provide more information about the problems with docs pages? We would highly appreciate any feedback.

Edit:

An example of double navigation:

<mdb-sidenav-layout>
  <mdb-sidenav #sidenav="mdbSidenav" [mode]="'side'">
    <ul class="sidenav-menu">
      <mdb-sidenav-item>
        <a class="sidenav-link"
          ><i class="far fa-smile fa-fw me-3"></i><span>Link 1</span></a
        >
      </mdb-sidenav-item>
      <mdb-sidenav-item>
        <a class="sidenav-link"
          ><i class="fas fa-grin fa-fw me-3"></i><span>Category 1</span></a
        >
        <ul class="sidenav-collapse" mdbCollapse>
          <li class="sidenav-item">
            <a class="sidenav-link">Link 2</a>
          </li>
          <li class="sidenav-item">
            <a class="sidenav-link">Link 3</a>
          </li>
        </ul>
      </mdb-sidenav-item>
      <mdb-sidenav-item>
        <a class="sidenav-link"
          ><i class="fas fa-grin-wink fa-fw me-3"></i><span>Category 2</span></a
        >
        <ul class="sidenav-collapse" mdbCollapse>
          <li class="sidenav-item">
            <a class="sidenav-link">Link 4</a>
          </li>
          <li class="sidenav-item">
            <a class="sidenav-link">Link 5</a>
          </li>
        </ul>
      </mdb-sidenav-item>
      <mdb-sidenav-item>
        <a class="sidenav-link"
          ><i class="fas fa-grin-wink fa-fw me-3"></i><span>Category 3</span></a
        >
        <ul class="sidenav-collapse" mdbCollapse>
          <li class="sidenav-item">
            <a class="sidenav-link">Link 5</a>
          </li>
          <li class="sidenav-item">
            <a class="sidenav-link">Link 6</a>
          </li>
        </ul>
      </mdb-sidenav-item>
      <mdb-sidenav-item>
        <a class="sidenav-link"
          ><i class="fas fa-grin-wink fa-fw me-3"></i><span>Category 4</span></a
        >
        <ul class="sidenav-collapse" mdbCollapse>
          <li class="sidenav-item">
            <a class="sidenav-link">Link 7</a>
          </li>
          <li class="sidenav-item">
            <a class="sidenav-link">Link 8</a>
          </li>
        </ul>
      </mdb-sidenav-item>
    </ul>
  </mdb-sidenav>
  <mdb-sidenav-content #sidenavContent>
    <!-- Navbar -->
    <nav class="navbar navbar-expand-lg navbar-light bg-light">
      <!-- Container wrapper -->
      <div class="container-fluid">
        <!-- Toggler -->
        <button
          #sidenavToggle
          class="btn btn-primary me-3"
          (click)="sidenav.toggle()"
        >
          <i class="fas fa-bars"></i>
        </button>
        <!-- Toggler -->

        <!-- Navbar brand -->
        <a class="navbar-brand" href="#">Brand</a>

        <!-- Toggle button -->
        <button
          class="navbar-toggler"
          type="button"
          (click)="basicNavbar.toggle()"
          aria-expanded="false"
          aria-label="Toggle navigation"
        >
          <i class="fas fa-bars"></i>
        </button>

        <!-- Collapsible wrapper -->
        <div
          class="collapse navbar-collapse"
          id="navbarSupportedContent"
          mdbCollapse
          #basicNavbar="mdbCollapse"
        >
          <!-- Left links -->
          <ul class="navbar-nav me-auto mb-2 mb-lg-0">
            <li class="nav-item">
              <a class="nav-link active" aria-current="page" href="#">Home</a>
            </li>
            <li class="nav-item">
              <a class="nav-link" href="#">Link</a>
            </li>
            <li class="nav-item">
              <a
                class="nav-link disabled"
                href="#"
                tabindex="-1"
                aria-disabled="true"
                >Disabled</a
              >
            </li>
          </ul>
          <!-- Left links -->

          <!-- Search form -->
          <form class="d-flex input-group w-auto">
            <input
              type="search"
              class="form-control"
              placeholder="Type query"
              aria-label="Search"
            />
            <button class="btn btn-outline-primary" type="button">
              Search
            </button>
          </form>
        </div>
        <!-- Collapsible wrapper -->
      </div>
      <!-- Container wrapper -->
    </nav>
    <!-- Navbar -->
  </mdb-sidenav-content>
</mdb-sidenav-layout>