The swiping down likely refers to the control centre accessed by swiping down from the top right. If you have the timer icon in your control centre, you can tap or hold it to bring up a slider which you can drag left to right and it is built in to the Dynamic Island on supported devices. If this does not appear, it’s probable that you have accidentally removed the icon from control centre. As the timer icon is in the default control centre, go to setting> control centre> reset control centre to default. This will arrange it back to how it is set up in default. If you are on the beta version, the often have bugs. So wait for the public release and update to that if you haven’t already (it is out now).
I hope this helps
if you mean something different, please say.
👍