If you are looking for flowchart Visio alternative for Linux, Edraw is what you want. A professional and smart flowchart Visio alternative which works quite well on Linux.
Brief Introduction to Linux Flowchart Visio Alternative
Linux does not support Visio software which makes it has few flowcharting tools options. And Edraw is definitely one of the best choices. It is such a powerful and versatile flowchart maker which is capable of creating various flowcharts, such as BPMN, cross-functional flowchart, data flow diagram, event flow diagram, IEDF diagram, workflow diagram, etc.Free Download