This is a non-exhaustive comparison of the popular AWS compute options. Hopefully it will help someone who’s also evaluating the various options for running your workload in AWS.
EC2 is the oldest and the most popular option as it is the easiest to start with. However you do have to manage a lot of things if you are choosing this option (OS, scaling, HA, etc). As a developer who may not be so familiar with cloud architecture, this can be daunting. Over the years, AWS has been making it easier to deploy code and make it scale. The latest compute product App Runner is a super simple way to write web applications in AWS. Though there are some who reported teething issues using it, I have no doubt those will be fixed in due time when it hits general availability.
Reference:
https://nathanpeck.com/concurrency-compared-lambda-fargate-app-runner/