Is file: protocol considered a secure context? Is reading and writing to the user filesystem at file: protocol considered to be any less "secure" than JavaScript code a web site reading and writing to the user filesystem where the https: protocol is being used? If so, for what technical reasons?

Given that any and all external network communications can be considered insecure, file: protocol, specifically within the scope of Native File System https://github.com/WICG/native-file-system should be considered a "secure context", where no external network communication is necessary.

(Was referred to this specification from WICG/file-system-access#58 (comment))