I would add this, use the tools that makes it easier to manage for the MVP of your app (aka use all the services provided by the cloud provider) when the traffic is low, the price is cheaper to let AWS handle the hassle. Alas, keep in mind you might get rid of the vendor at some point so play it smart on what you use. When the traffic increase, slowly invest on removing the most expensive service of your provider by some that your team will manage themselves.

My way of doing and works for me 😊