Does being OSS actually matter for this app? It would still be running on a proprietary OS, and you won't be personally inspecting the code closely enough to kn

Does being OSS actually matter for this app? It would still be running on a proprietary OS, and you won't be personally inspecting the code closely enough to know that it's secure anyway. If you were concerned about what was being sent and to where, you would probably be better off to capture all traffic originating from your computer and verify that nothing extra is being sent, and that the destination is appropriate. Whether it was sent by open or closed source software is utterly irrelevant