Re:Why the Gov.uk Design System team changed the input type ...
by thirty6degrees on Monday March 02, 2020 @04:15AM
(#22462870)
That is odd. However, it looks like this matches the behaviour of <input type="number"> (both trigger the punctuation keyboard).
The iPhone shows the 0-9 keyboard. The iPad shows the punctuation keyboard. This is not obvious, and one of the places where Mobile Safari acts differently between the two device types.
Try jsbin.com/necuzoj