The option "Maximize window" used to toggle the active window between maximized and resizable when using the original Logitech Options application. Now, with the new Logi Options+, it can no longer toggle between the two, and can only maximize the active window. Using this action on a window that is already maximized does nothing.
It would be very much appreciated if the old toggle functionality of the "Maximize window" action could be readded, as it was very useful to be able to quickly toggle a windows's mode.