Will marking up my menu on Uber Eats hurt my visibility?

It can. Uber's US terms say Uber may consider prices when deciding a store's prominence, and bar you from listing higher than on a competing app.

• Uber displays your in-store price as the app price, and may update the app price to match.
• You agree not to list an item higher than on any competing app.
• Uber may consider item prices when it decides how prominent a store is.
• Failing the price rules can lead to suspension or removal.
• These are the US terms. Read the terms for your country.