On your iphone/ipad
step by step
01
Go to “settings”
02
Select “accessibility”
Select “customize commands”
03
Select “voice control”
04
Select “customize commands”
05
Type the word “scroll“ in the very top search bar
06
Then ensure the first command that comes up in the results “scroll down“ is enabled, which it should be by default
pro tips
You do not need to say “hey Siri“ before your “scroll down“ verbal command.