the Jhana that is described as absorption in the suttas
are the ones that teacher/s of the ascetic Gotama practice
and Buddhaghosa discribes this kind of Jhanas practice calm or samatha, for example to drop the applied and sustain thought ,they concentrate on silence and suppress the thoughts
the Buddha teaches the samma samadhi this kind of practice are using applied thought and sustain thought to get to silence, like applying the word Buddho. this way you see how drop of
requirement occurs, thus producing the dry insight, with this drying insight, you then see which requirement conditions, making insight fulfill its function (sammasati)
thus making Jhana with Discernment. and this is the right way to practice according to Sutta 111 and this is the right way to spin the Dhamma wheel.
so the teaching of Calm Jhana are not 8nolbepath practice