Probably disabled in overlays?
Any news here? I would also love to see the mini axis while transforming.
Open a new window go to file-Defaults-y load factory, the viewport axis will reappear. copy the design you are doing in the window where the axis does not appear select all, copy and paste in the new window that is restored, give it the same name and close the one with the values that could not be restored. the case is that the custom values that are not had, it’s time to do them again. This way I was able to solve it, I don’t know if this helps.