The following code is working in the TS playground, but doesnt seem to work with the same config settings in my actual project.

Code:

    class Test {
        @loggedMethod
        private async sayHi(txt: string) {
            console.log(txt);
        }
    
        async difMethod() {
            this.sayHi('well');
        }
    }
    
    function loggedMethod(originalMethod: any, context: ClassMethodDecoratorContext) {
        const methodName = String(context.name);
    
        function replacementMethod(this: any, ...args: any[]) {
            console.log(`LOG: Entering method '${methodName}'.`);
            const result = originalMethod.call(this, ...args);
            console.log(`LOG: Exiting method '${methodName}'.`);
            return result;
        }
    
        return replacementMethod;
    }
    
    const tClass = new Test();
    tClass.difMethod();

ts.config (local)

 {
      "compilerOptions": {
        "target": "es5",
        "lib": [
          "dom",
          "dom.iterable",
          "esnext"
        ],
        "experimentalDecorators": true,
        "suppressImplicitAnyIndexErrors": true,
        "allowJs": true,
        "skipLibCheck": true,
        "esModuleInterop": true,
        "allowSyntheticDefaultImports": true,
        "strict": true,
        "forceConsistentCasingInFileNames": true,
        "noFallthroughCasesInSwitch": true,
        "module": "esnext",
        "moduleResolution": "node",
        "resolveJsonModule": true,
        "isolatedModules": true,
        "noEmit": true,
        "jsx": "react-jsx"
      },
      "include": [
        "src"
      ]
    }

On the other hand, the following does work in my actual project

    class Test {
        @loggedMethod
        private async sayHi(txt: string) {
            console.log(txt);
        }
    
        async difMethod() {
            this.sayHi('well');
        }
    }
    
    function loggedMethod(target: any, name: string, descriptor: PropertyDescriptor) {
        target[name] = function replacementMethod(this: any, ...args: any[]) {
            console.log(`LOG: Entering method '${name}'.`);
            const result = descriptor.value?.call(this, ...args);
            console.log(`LOG: Exiting method '${name}'.`);
            return result;
        };
    
        return target[name];
    }
    
    const tClass = new Test();
    tClass.difMethod();

Notice the difference in the arguments for the decorator function. Why the difference? Both are set to TS 5.4.5 and it does work for the second version when I remove the "experimentalDecorators": true, However, when I do remove "experimentalDecorators": true, I get an error Unable to resolve signature of method decorator when called as an expression. The runtime will invoke the decorator with 2 arguments, but the decorator expects 3. Which would reflect the documentation of TS5.x decorators as shown https://devblogs.microsoft.com/typescript/announcing-typescript-5-0/#decorators in the number of arguments, but it seems that, regardless of my "experimentalDecorators": true, option, it is using the old decorator definition. Is there another config somewhere?