I have two Mac users, and both have File Manager issues.
Obviously, this is a key feature.
For reference, cPanel has not one but two non-Java (apparently) File Managers, one Legacy and one newer. I have never, ever, in about 5 years of cPanel hosting, gotten a complaint about those File Managers.
There are some benefits of the Java version, notably cut and paste, but when the Java technology acts as a stopper, that more than negates any benefits.
Thanks for considering. Ken