Why not try a different university? Or a university in a different country? I am also in academia but in a field that is not CS related and we get visiting pro

Why not try a different university? Or a university in a different country? I am also in academia but in a field that is not CS related and we get visiting professors all the time. You should do some research and see if you could apply for any research grants/fellowships in different countries or at least different universities in your area. You seem to be quite burned out by the drama at your institution and changing your environment could be beneficial. Just because things are managed poorly at your institution does not mean they are done equally poorly elsewhere.