While I can't tell exactly what the author is thinking, the opinion that I see is that it feels a lot like a video game. The author said "game inspired menu system" which is a far cry from game-like user interface, which would be a corrected version of gamified user interface.
That does seem obviously like an opinion, however there are some things that don't seem like an opinion that can still be considered an opinion.
This fits a whole class of headlines, which are described as editorialized, some of which seem more opinionated than this and some which seem less opinionated. I'm not sure whether it's better wrangle the use of opinion and the definition of opinion to make these satisfy the dictionary definition of editorialized or accept that the use of language has evolved and it's better not to be overly prescriptive.
That would be a fact in this case, because "Btop - Resource monitor that shows usage and stats for processor, memory, disks, network and processes" is too long for a HN submission
That does seem obviously like an opinion, however there are some things that don't seem like an opinion that can still be considered an opinion.
This fits a whole class of headlines, which are described as editorialized, some of which seem more opinionated than this and some which seem less opinionated. I'm not sure whether it's better wrangle the use of opinion and the definition of opinion to make these satisfy the dictionary definition of editorialized or accept that the use of language has evolved and it's better not to be overly prescriptive.