There is gas and diesel - it is just expensive for everyday folk relative to how much money they can realistically make

Do you have first hand experience from the last ~month? (since everything has collapsed again)

Friends living there who are very, very well off can not physically get their hands on a single liter of gas or diesel.

I recently spent 6 weeks driving around virtually all of Zimbabwe, I have a pretty good idea how the country works (or at least, before the most recent collapse)