There are a lot of points in there that are just generally bad in modern applications – e.g. UI inconsistencies, lack of automation and general configurability

There are a lot of points in there that are just generally bad in modern applications – e.g. UI inconsistencies, lack of automation and general configurability (shared ways to handle windows, layouts, keyboard shortcuts, etc.). I think it’s fair to say these things are just hugely lacking in modern operating systems. Linux might come close, but only with lots of tinkering. macOS is clearly lost and degrading now, and Windows was never close to having these qualities. I don’t know if TUIs will be the answer, but it’s an interesting development!