You can just download Java (.jar file).Would like to ask for verification before overwriting my files.
Upon receiving updates I planned to "only" DL JAVA version and use it the overwrite my current file instead of DL both Win and Java ver after every update.
Is this fine or will I face issues in doing this?
The additional files you already got from Win version don't need to be replaced. They may get an update one day, but for now they're the same.