In some ways. However, unlike Starfinder and Star Wars, Star Frontiers does not have magic. Although I guess it might acquire magic of some kind if it was relaunched.IMO, better to compare Starfinder to Star Frontiers...but that's a different thread I suppose.
You can do that sort of thing perfectly well with PnP Star Wars RPGs (and I have done). Star Wars, as a setting, is at it's best when it goes outside the movies.The Starfinder setting is much more flexible and diverse than you give it credit for. Personally, I don't like Star Wars, but I'm very much enjoying running my intermittent Starfinder campaign set in the Spike of Absalom Station. I've made it kind of a 50s beat vibe, layered over the downtrodden districts of the Space Station. Nothing like Star Wars at all.
Were they the Bioniods?Don't forget the Elven Guyvers
I'm not sure where in the sci-fi end of things they push things, but, well, its certainly a thing that exists
Yes.Were they the Bioniods?
Aside from some monster entries, it's really not. The core boxed sets are not goofy at all and the setting can be quite grimdark. Races like the neogi, mindflayers, scro, beholders, etc are quite nasty and slavery is featured prominently.
Yes, there are gnomes and giant space hamsters. But those are either easily annoyed or simply looked at as one (small) aspect of the setting.
Heck, Star Wars can have Vader and the rancor alongside Ewoks and C-3PO.
I feel it was pretty goofy. The crystal spheres and phlogiston and the gravity lines on ships, and each ship looking like some kind of sea creature. Hippo men with guns and space hamsters and so on. The presence of some darker or less absurd elements doesn't mean it's not goofy.
But I'm not saying that goofy is bad in this context. Quite the opposite, really, because I believe that's what they were going for.
I'll admit it's semantics but I wouldn't use the word "goofy" for what you described. When goofy is used to describe content it tends to be a negative. I equate it with content that is distracting, unintentionally funny, or if it is intentional, slapstick humor.
Spelljammer is akin to Victorian steampunk, Jules Verne, Doctor Who, Babylon 5, Farscape, etc. There are absolutely humorous, quirky, and fantastical elements but it's not goofy.