First, swipe along the top-down screen to open the Quick Settings panel and select the arrow to the right of the brightness bar. The setting options related to brightness will appear. At the Show control on top option, drag the slider to turn it on and select Done. So now the brightness adjustment bar will display right above the notifications and under several quick settings options.
No need to drag down for a long time to see the brightness bar again
Hope the article is useful to you!