If it fulfills your needs perfectly then there's no need to change.
It may be still worth playing with a bit and doing tooling investigation to find out if there are some super useful features for your case.
I switched to vscode from sublime recently, because it has much better autocompletion and "goto definition" especially when working with JS and TypeScript code, which is exactly what I need.
Other than that I was able to replicate all features from Sublime (e.g. multipoint editing) and I'm not aware of any missing feature from what I used in Sublime. One con is that vscode is slower to start and slower to open up a file.
I switched to vscode from sublime recently, because it has much better autocompletion and "goto definition" especially when working with JS and TypeScript code, which is exactly what I need. Other than that I was able to replicate all features from Sublime (e.g. multipoint editing) and I'm not aware of any missing feature from what I used in Sublime. One con is that vscode is slower to start and slower to open up a file.