List

The 'list-unstyled' class removes the left margin and bullets on list items that are the immediate children of the element.
RESETRUNFULL
<!DOCTYPE html><html>
<head><link href='https://cdn.jsdelivr.net/npm/bootstrap@5.2.0-beta1/dist/css/bootstrap.min.css' rel='stylesheet' integrity='sha384-0evHe/X+R7YkIZDRvuzKMRqM+OrBnVFBL6DOitfPri4tjfHxaWutUpFmBp4vmVor' crossorigin='anonymous'>
      <script src='https://cdn.jsdelivr.net/npm/bootstrap@5.2.0-beta1/dist/js/bootstrap.bundle.min.js' integrity='sha384-pprn3073KE6tl6bjs2QrFaJGz5/SUsLqktiwsUTF55Jfv3qYSDhgCecCxMW52nD2' crossorigin='anonymous'></script>
      <style>div:not(.container):not(.tooltip):not(.tooltip *):not(.navbar *):not(.carousel-caption):not(.card *):not(.form-check):not(.input-group) { border:1px solid grey; text-align:center; }</style>
</head><body>

    <ul class="list-unstyled">
        <li>item 1</li>
        <li>item 2</li>
        <ul>
            <li>item 3a</li>
            <li>item 3b</li>
        </ul>
        </li>
    </ul>

</body><html>
You can create an inline list that flows horizontally instead.
RESETRUNFULL
<!DOCTYPE html><html>
<head><link href='https://cdn.jsdelivr.net/npm/bootstrap@5.2.0-beta1/dist/css/bootstrap.min.css' rel='stylesheet' integrity='sha384-0evHe/X+R7YkIZDRvuzKMRqM+OrBnVFBL6DOitfPri4tjfHxaWutUpFmBp4vmVor' crossorigin='anonymous'>
      <script src='https://cdn.jsdelivr.net/npm/bootstrap@5.2.0-beta1/dist/js/bootstrap.bundle.min.js' integrity='sha384-pprn3073KE6tl6bjs2QrFaJGz5/SUsLqktiwsUTF55Jfv3qYSDhgCecCxMW52nD2' crossorigin='anonymous'></script>
      <style>div:not(.container):not(.tooltip):not(.tooltip *):not(.navbar *):not(.carousel-caption):not(.card *):not(.form-check):not(.input-group) { border:1px solid grey; text-align:center; }</style>
</head><body>

    <ul class="list-inline">
        <li class="list-inline-item">Back</li>
        <li class="list-inline-item">Login</li>
        <li class="list-inline-item">Next</li>
    </ul>

</body><html>
You can create a list using the same classes used to control the grid layout too.
RESETRUNFULL
<!DOCTYPE html><html>
<head><link href='https://cdn.jsdelivr.net/npm/bootstrap@5.2.0-beta1/dist/css/bootstrap.min.css' rel='stylesheet' integrity='sha384-0evHe/X+R7YkIZDRvuzKMRqM+OrBnVFBL6DOitfPri4tjfHxaWutUpFmBp4vmVor' crossorigin='anonymous'>
      <script src='https://cdn.jsdelivr.net/npm/bootstrap@5.2.0-beta1/dist/js/bootstrap.bundle.min.js' integrity='sha384-pprn3073KE6tl6bjs2QrFaJGz5/SUsLqktiwsUTF55Jfv3qYSDhgCecCxMW52nD2' crossorigin='anonymous'></script>
      <style>div:not(.container):not(.tooltip):not(.tooltip *):not(.navbar *):not(.carousel-caption):not(.card *):not(.form-check):not(.input-group) { border:1px solid grey; text-align:center; }</style>
</head><body>

    <dl class="row">
    <dt class="col-3">Nesting</dt>
    <dd class="col-9">
        <dl class="row">
            <dt class="col-4">Nested definition list</dt>
            <dd class="col-8 text-truncate">Aenean posuere, tortor sed cursus feugiat, nunc augue blandit nunc.</dd>
        </dl>
    </dd>
    </dl>

</body><html>