Restrict users from storing in home directory in Linux

We have a RHEL server where multiple users have access to it through application. Application RStudio running on these servers default the workspace to the users /home folder. Though there is separate space provided for individual users, users tend to store the files onto /home filling up the /home. Is there any possibility to restrict users from storing data to their home folders either at server level or R Studio level which would force them to use the provided location? Though there are options to change the default workspace for all the users, due to the large number of teams each having their sensitive data, it is not possible to have a shared folder as default location. Note: I have posted it on SO but since it is more into administration, posting it here.