Wouldn’t it just be considered bad practice to add a field and not initialize it? That feels strongly like something a code review is intended to catch.
It’s easy to miss this in large codebases. Having to check every single struct initalisation whenever a field is added is not practical. Some folks have mentioned that linters exist to catch implicit initialisation but I would argue this shouldn’t require a 3rd party project which is completely opt-in to install and run.