Hard disagree.
- On cost: there is almost nothing better for the indie hacker, bootstrapper, or startup than cloud services.
I run apps on all three platforms (Google, AWS, and Azure) and my monthly spend is less than $2.00 < month using a mix of free tier services and consumption based services (Google Cloud Run, Google Firestore, AWS CloudFront, AWS S3, Azure Functions, Azure CosmosDB).
- On complexity: if you've used Google Cloud Run or Azure Container Apps, you know how easy it is to run workloads in the cloud. Exceedingly easy. I can go from code on my machine to running API in the cloud that can scale from 0 - 1000 instances in under 5 minutes just by slapping in a Dockerfile _with no special architecture or consideration, no knowledge of platform specific CLIs, no knowledge of Terraform/Pulumi/etc._
The current generation of container-based serverless runtimes (Google Cloud Run, Azure Container Apps) is pretty much AMAZING for indie hackers; use whatever framework you want, use middleware, use whatever language you want. As long as you can copy/paste an app runtime specific Dockerfile (e.g. Node.js, dotnet, Go, Python, etc.) in there, you can run it in the cloud, and run it virtually for free until you actually get traffic.
If any of the projects take off, then pay to scale. If they don't take off, you've spent pennies. Some months I can't even believe they charge my CC for $0.02.