Technology choices should reduce product risk. A popular framework is not automatically the right architecture for every team.
Evaluate the expected interaction model, data sensitivity, integration surface, delivery speed, hiring constraints and operating environment.
For many web SaaS products, a typed React framework, relational database and managed cloud services provide a pragmatic default. Specialized infrastructure should enter only when requirements justify it.
The best stack is one your team can understand, observe, secure and change as the product evolves.
APPSBIZ perspective
The right implementation depends on product context, users, data, compliance and team constraints. Treat these notes as a decision framework rather than a universal architecture prescription.