I am on Linux.
So, with the last version on Linux, Ctrl+S / Save now opens the path selection prompt at the last location. The dirty save prompt also works.
However, Save is is still bound to a Save as behaviour. Save should just save on the last path without prompting for anything (as in a text editor). So there is still a need to distinguish Save and Save as. Especially as 99% of the time, you just want to save your latest changes at the same file location, without an extra double-click on the existing file + confirm Replace file.