I know that with shiny server open source there's only one R process per user. In Server Pro & Connect, there is a predefined number of users who can connect to an app.
I also know that an Rmd document can be hosted on these servers. Since Rmd documents don't need a backend, does this mean they don't count towards these limits? So would hosting an Rmd document mean that thousands of people can open it at the same time and it won't affcet anyone else?