> But in majority of the cases developers are very much aware of environments their code run on - they know that their containers are stored in ECR, ran in ECS, their data is stored in S3 and RDS.

This has absolutely not been my experience. I've worked with a few devs who might be curious to know how everything worked. Most devs I've worked with focus solely on the code they write.

I've also inherited many systems over the years and I'd take the ones managed with tf over bash every single time.

A non exhaustive list of what tf helps with.

1. Being able to know what has changed and what needs to change before you run

2. Managing infra outside of the large cloud providers and being able to combine the two

3. Quickly being able to add a new environment or region to an existing cluster

4. Some requirement has changed and some new policy/tool needs to be stitched in across all your environments