Not much in that department, either. Nothing that beats the proprietary software staples, especially for creatives, that I happen to use: no Cubase, Pro Tools, Photoshop, Premiere, etc. Lots of apps ranging from "close but no cigar" to "why even try?".
GTK has been fairly hostile to non-Gnome usage since the GTK 3 era; they keep on breaking backwards compatibility for applications that use it, don't care about whether apps can be used on non-Gnome desktop environments, etc. I don't think it's all that polished either.
You have valgrind and many other tools instead of "Instruments".
The GNOME project itself [1] has a lot of projects which compete with what you linked. Sure, Apple has a few billion dollars to dump into development every year, so you have to adjust for scale.
> GNU/Linux doesn't have desktop stack capable of matching Objective-C, Swift frameworks both in feature set and related GUI tooling.
Qt alone exceeds the feature set, has more GUI tooling, and is multi-platform. That's just Qt, and the same could be said for GTK. I'm not slinging mud at Obj-c and the frameworks Apple maintains, but they are not unique snowflakes without equal.
well the not-fully-working desktop stack for Linux devs seems to work just fine for them. I've certainly never had a problem with it. I've never had a problem with the Apple kit either but it's nothing to write home about. The only thing I've seen Apple do that I did think was really cool is the package signing.
Sorry, but this old argument never washed with me. Certainly before Gnome 3 and Unity, the UX was considerably nicer than on my Mac, and in fact those old DEs are still much nicer to use than Yosemite, and the new ones are much worse precisely because they abandoned good design in favour of the Apple kool-aid.
I'm going to leave it there before the mist descends, but basically as far as I'm concerned Apple couldn't design a paper bag without fucking it up.
Where Linux sucked was in the distros' constant "improvement" of core features that weren't broken in order to be first past the post. For example PulseAudio was introduced before it actually worked with most hardware configurations, and nobody cared about the cool new features it came with. Ubuntu deciding to adopt KDE4 before it was ready for general release was another stupid decision. In fact, I'm basically talking about Ubuntu and Gnome.
I have used Gtk+, wxWidgets, Qt, KDeveloper, once upon a time between 1995 and around 2004.
Still use GNU/Linux on my travel netbook and of course, some of our servers run it. Last time I used Qt in anger was 5.3, while trying to do a mobile project that I eventually ported to pure native APIs.
Do you know of any other frameworks, besides those that cover all of these ones?
GNU/Linux doesn't have desktop stack capable of matching Objective-C, Swift frameworks both in feature set and related GUI tooling.