Nobody who relies on Medicare would say that. The people who say it want a fantasy Medicare that doesn't exist.
https://www.medicare.gov/providers-services/original-medicar...
Some of the items and services Medicare doesn’t cover include:
Eye exams (for prescription eyeglasses)
Long-term care
Cosmetic surgery
Massage therapy
Routine physical exams
Hearing aids and exams for fitting them
Most dental care: In most cases, Original Medicare doesn't cover dental services like routine cleanings, filings, tooth extractions, or items like dentures.