Yes, you can create workflows for SharePoint lists in SharePoint Designer, but they aren't the most robust workflows you may need for your organization.

SharePoint 2013 workflows for automating common business processes can be deployed as SharePoint apps built using Visual Studio.

SharePoint (MOSS and WSS -- does offer some out of the box workflows, but there are basic. You can add new workflow by creating them in either Visual Studio or SharePoint Designer.

Microsoft Flow provides SharePoint Online with more robust and reliable workflows than BCS, and the new administrative tool ensures they're in compliance with your organization's data loss ...

Microsoft on Monday gave notice that it will be ending support this year for the 'workflows' component of SharePoint 2010 Online, as well as deprecating that component for SharePoint 2013 Online.