Whilst investigating performance issues on a SQL Server 2017 instance, I had made some recommendations to hopefully alleviate the issue. They worked, but in the back of my mind I was a bit disappointed as I wanted to enable query store on this database and use this feature. I am now trying to convince them that enabling query store will help them troubleshoot issues in the future. Maybe I want to make it as part of my best practices on critical databases.
I would need to look at the configuration parameters especially the default for capture mode to make sure it is not impacting performance.