I'm not sure how to describe the question properly. I used to use IDE tools such as IntelliJIdea. One of the useful functions from intelliJ was to open an external file by clicking an imported variable or component. I wonder if there is such functionality in vscode too. Although I tried looking up in the document, I couldn't find information about it. Does vscode really not have that convenient functionality?
Visual Studio Code does provide this feature.
If you hold down the Ctrl key in VSCode and for example hover over a function call, a small info box appears (like shown below).
If you now click on it (while still holding down Ctrl), VSCode automatically opens the corresponding file in a new tab and jumps to the line where the function was defined.
This works for variables, instances of classes etc. as well.