I am an IT Project Manager committed to deepening my understanding of systems design and architecture

Hey guys, need some advice

I am currently the project manager of a complex healthcare technology program and I am using this as an opportunity to really deepen my technical knowledge

I don’t want to learn how to code, I just want to know what technology stacks will be needed and what strategies will be implemented to build a solution on the basis of requirements- basically like what a solutions architect does.

I feel like that will be extremely valuable knowledge for a project manager to have (ideally, I want to eventually transition into a Technical Program Manager).

Here are the current efforts I am making -

Currently having a good grasp of IAM frameworks and APIs but still doing my research and asking devs questions, then I will go into databases and networking next - then understanding some other cybersecurity concepts then progress like that

I also plan to do the AWS Solutions Architect Professional (after studying the AWS SAA of course)

I also want to read this book: Designing Data-Intensive Applications

What do you advise? Please note I wasn’t a dev before.