NPM is a built in package manager by Nodejs and npm is a good choice for building small scale JS/TS project.
But the problem arises when you going to build large scale robust projects such as monorepos, microservices which are as follows
1) Performance Issues: npm can sometimes suffer from performance issues, especially in large-scale projects with many dependencies. Some developers find Yarn and pnpm faster. Slow installation times and high resource consumption may impact developer productivity and build times.
2) Versioning Complexity: Managing package versions and dependency conflicts can be very challenging with npm, particularly in projects with complex dependency trees.
3) Security Concerns: npm packages are not immune to security vulnerabilities, and relying on third-party code introduces potential risks to projects.
4) Dependency Bloat: npm's default behavior of installing packages locally can lead to dependency bloat, where projects accumulate unnecessary dependencies over time.
Please dont take as I am defaming the NPM these are the problem I found with NPM while I was working on monorepos