Comment # 2 on bug 1032849 from Jan Engelhardt

>However, adobe-sourcehanserif-fonts and adobe-sourcehansans-fonts only include Taiwan (Traditional Chinese) fonts.

They also include Japanese AFAICS, so I'm good.

>Packaging fonts for both brands���Or can fonts-config deal with the the link from "Adobe Source Han Sans/Serif" to "Google Note Sans/Serif" 

https://www.google.com/get/noto/help/guidelines/ writes

"""Put "Noto Sans" before "Noto Sans CJK". Currently, the Latin characters in
the CJK fonts are from Adobe���s Source Sans Pro"""

This suggests that (the Latin parts of) Noto Sans are not from Adobe at all, so
there does not seem room for obsoleting either of {Noto, Adobe Source}.