Question

there's no option to switch between explore by touch and linear navigation true or false

Answer 1

There is a another option is to use scroll

Answer 2

"The given statement is about touch exploration is true.

We need to touch the screen of the device to know what lies beneath the fingers. This is a default setting.

If it is turned off, the device will no longer respond to shortcut indicators and will not refer to objects after the screen is touched. This phenomenon is referred to as the touch exploration.

"