I use draw.io as well but also find creating message sequence charts using - https://sequencediagram.org/ https://sequencediagram.org/ very useful for the teams

I use draw.io as well but also find creating message sequence charts using - https://sequencediagram.org/ https://sequencediagram.org/ very useful for the teams to understand the workflows. Rather MSC is something I have made mandatory for certain complex workflows which involve multiple apps and services.