I'm trying to open RStudio. I first tried using a past version (since my Mac wasn't updated), and then I updated to the newest version and attempted to download the newest version of RStudio, yet it still wouldn't work. There was no error message either; it just force quit itself immediately after I open it. I have no prior experience with RStudio, so I have no clue what's wrong.
Try starting RStudio from a terminal, maybe you'll see some clues:
/Applications/RStudio.app/Contents/MacOS/RStudio
You can also run diagnostics with
/Applications/RStudio.app/Contents/MacOS/RStudio
and then look at the output file.
What version of macOS do you have? The latest version of RStudio supports macOS 12, 13, and 14.