Current releases appear to use second variant with a space in it, however some older versions use the first one. For example current Debian packages have a name with a space, see [1]. Same for now read-only repo [2]. Is it safe to assume that all upcoming releases are going to be using "Noto Sans Symbols 2" for a name?

I couldn't find any closed issues regarding this naming difference.

[1] https://packages.debian.org/forky/fonts-noto-core
[2] https://github.com/notofonts/NotoSansSymbols2