I will only add that according to my SPM, less than 10% of my customers leave private reviews (I won't share numbers, and I don't say that it's a general trend, but I have what I have).
At the same time, around 50% of them leave public ones.
So, it turns out that even one unhappy customer can ruin your sales. I had two orders from one person, and his unhappiness affected my sales for almost 90 days. And yes, it was a new customer (I mean that we never worked together before), who ordered 200 (100 and 100) words in total.
I have a lot of returning customers (50-70% depending on the month), and I understand that they don't want to fill out all those surveys. As I understand, now I have to ask them to do that to stay afloat.