On a long form landing page, I’d like to offer fewer fields on the form fill for mobile. Is there a way?
You might be able to do it by playing around with CSS.
Here is a recent thread that had a similar question. My answer on it has a sample CSS that might point you in the right direction.
P.S. If you are thinking of removing fields from your mobile version, are these fields really, absolutely necessary in the first place on the desktop page?