We sold and bought our house in 2021. We bought for $1 million and sold for almost $3 million over 8 years. When it came time to selling the house, my realtor was able to extract an extra $100k from the buyers as well as make it an all-cash offer with no contingencies.
When we bought our new house later that year, the house we were looking at was on the market for about a month. We were going to give an offer at list price, but she could tell the selling agent was a bit desperate, so she was able to get it $100k below list price, something that is unheard of in the SF Bay Area.
Overall she netted us $200k over both transactions, and she was singlehandedly the reason for this. That's what you get when you have a really good agent.