I happen to really like ECS with ECS Anywhere (for heavy compute the price CAN NOT be beat in my view) and Fargate (for simplicity).

That said, App Runner a great possible fit that would do exactly what I want (build my docker from my repo!) in some cases and just weird there are SO many services that you really have to be paying attention to learn the next one.

My only real complaint is some products the quality really is below expectations I think. ELB / Workmail / CodeCommit / Cloud9 I was expecting more from and pace seemed off on some of these. I think they might distinguish maintenance mode products from active dev products just to give you a feel for trajectory.

AWS RDS / ECS and ECS Anywhere and Fargate - enjoy the experience.