No integrated process/tool inside macOS can help you completely uninstall the app and remove its leftover files. You can manually find the related files of uninstalled apps in Finder or use a third-party tool to uninstall the app and delete its related files altogether.
If you have already uninstalled the app from Mac, you can remove app leftover files from Mac by manually locating them in Finder and deleting or using a third-party cleaner for Mac such as iBoysoft DiskGeerker, which can search and clean junk files including the files generated by the uninstalled app.
If you attempt to remove the app on Mac, iBoysoft MagicMenu is more recommended, this right-click menu enhancer adds an option Uninstall, which enables you to uninstall an app from the Finder context menu, during the process, it will find all leftovers of the app, and you can select all unwanted files to move them with the app altogether.
