"feedback on whether" is correct and usable in written English.
You can use it when you are asking someone for a response sharing information or opinion about a certain topic. For example, "Can you provide feedback on whether we should make this change?".
Advice sites like Go Try It On and Fashism deliver instant feedback on whether one ought to walk out the door wearing Uggs with a miniskirt.
Golden Seeds holds monthly open "Office Hours," where companies sign up to meet one-on-one with investors for 15 minutes, and get feedback on whether they are ready for institutional funding.
So we can't use it to get feedback on whether an experimental treatment works.
Ask for frank feedback on whether your evaluation matches the outsider's.
In 2008, regulators sought public feedback on whether to allow a range of event contracts but never took action.
"But there's a way for you to give feedback on whether a Samaritans Radar alert was correct, so the service improves for everyone as it learns more".
Here I would welcome feedback on whether there are now too many themed these puzzles for your liking, or whether the mix is about right.
The parliamentary ombudsman places an advert in national newspapers, asking for feedback on whether her office should conduct a further investigation into the regulation of Equitable.
Based on these data, the device then generates feedback on whether or not they are getting closer to the right place, or are even facing the right direction.
They can use technology to deliver personalised lessons and get timely feedback on whether a pupil has grasped a concept or is struggling.
It has few a gimmicky features, but they are not activated by default and are hidden behind an experimental menu that asks users for feedback on whether they're useful.
