Hunter_Code

В моем случае помогло изменить атрибуты data-toggle на data-bs-toggle , data-target на data-bs-target, data-dismiss на data-bs-dismiss

<!-- кнопка вызова -->
<button type="button" class="btn btn-primary btn-lg" data-bs-toggle="modal" data-bs-target="#exampleModal" data-whatever="@risk" >кнопка</button>

<!-- форма обратной связи -->
<div class="modal fade" id="exampleModal" tabindex="-1" aria-labelledby="exampleModalLabel" aria-hidden="true">
	<div class="modal-dialog">
		  <div class="modal-content">
	<div class="modal-header">
				  <h5 class="modal-title" id="exampleModalLabel">New message</h5>
				  <button type="button" class="close" data-bs-dismiss="modal" aria-label="Close">
					<span aria-hidden="true">&times;</span>
				  </button>
				</div>
				<div class="modal-body">
				  <form>
					<div class="mb-3">
					  <label for="recipient-name" class="col-form-label">Recipient:</label>
					  <input type="text" class="form-control" id="recipient-name">
					</div>
					<div class="mb-3">
					  <label for="message-text" class="col-form-label">Message:</label>
					  <textarea class="form-control" id="message-text"></textarea>
					</div>
				  </form>
				</div>
				<div class="modal-footer">
				  <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
				  <button type="button" class="btn btn-primary">Send message</button>
				</div>
			  </div>
			</div>
		  </div>
		  <!-- форма обратной связи -->