cool thing i found out recently, be os was a media focused os from the 90s, and it came with a web browser called netpositive. the thing netpositive was famous for was using haikus for error messages.
all the haikus: https://8325.org/haiku/
be os wikipedia: https://en.wikipedia.org/wiki/BeOS
be os's spiritual successor (fittingly named "haiku"): https://www.haiku-os.org/