Indeed; this is the bulk of AWS / Azure / Google Cloud's business model, the so called "kill zone" adjacent to their infrastructure offerings. They let startups conduct the risky, expensive R&D to find product-market fit, then step in with massively more operational resources to clone whatever worked, only with massively more resources on developing better tooling.
Would love some talks covering where the adjacent areas are to the cloud offerings - are you thinking at AI inference startups or more dev tooling?
The oddest trend I have noticed (may be selection bias) is how many people build dev tools these days... to the point even non-devs are starting to talk about their no-code builder startups... it's getting crazy.