Which NAS supports HTTPS for all kinds of files and connections?

Question

NAS

Hello, I’m choosing a NAS for myself, but for some reason the manufacturers do not indicate whether the proposed devices support encryption of all connections via the Internet? That is, so that when I upload a document via the Internet to a NAS, I do it safely. There is a VPN, but when I work from a smartphone, it can fall off from time to time, especially if the mobile network is unstable.

While I'm looking towards WD My Cloud Ex2 Ultra and Qnap TS-228A, but there is little data.