Yes

Authentic direct reviews from Amazon buyers can last for a long time, even for years. This is because Amazon's review system is calculated based on long-term average scores, not short-term reviews.

Therefore, if a buyer gives a genuine direct review, it will have a long-term impact on the seller's rating. Of course, if the seller can improve their products and services, their rating will also improve. Therefore, Amazon buyers' genuine direct reviews can last for a long time, but sellers also have the opportunity to improve their ratings.