I've thought about this in the past. There's a modern way to build architecture, and cloud providers are in general only providing the building blocks and requiring you to put them together. It's unscalable to expect every company to hire someone smart enough to construct a good architecture (let alone the time) but at the same time, people who have been working on infrastructure long enough know that there's really only a handful of useful architectures that solve 90% of problems. I thought of it as CTO-as-a-service or CTO-in-a-box.

Service meshes like istio.io start to solve a portion of this.

Almost certainly there is endless complexity but I bet you can come up with something useful. Good luck!