I'm fairly certain you need to install RStudio Server to access it remotely, not the regular RStudio. So, name of the file you are installing should be rstudio-server-1.2.1047-amd64.deb.
What version of RStudio do you see when you click on About RStudio?
I agree with @mishabalyasin. It looks like you are installing R Studio Desktop then starting R Studio Server. So you're seeing the R Studio Server version when you open R Studio Server. Here's the install instructions for R Studio Server on Ubuntu: