I can't comment overall on the article, and my experience is a a few years out of date, but my experience with Amazon managed DB services was that the DB iops b

I can't comment overall on the article, and my experience is a a few years out of date, but my experience with Amazon managed DB services was that the DB iops bandwidth and limitations were so bad that you'd be better off colocating your work laptop with a DB for even moderate size projects. (It's been a minute, but I think we ended up using an NVMe SSD volume on k8s w/ a PG container to run a stack of low volume services for fractions of what RDS would cost. Next job was married to RDS and we constantly had issues with lack of iops for whatever we were doing, though my memory is that is wasn't anything wild. Just bursty.)