No, I never got that feeling. I think there's a sub-culture of systems-level programmers that are skeptical of C++ (sometimes for reasons I can respect as pragmatic and reasonable, cf. Linus), but the FOSS community is a lot larger than systems-level programming. In the areas I've dabbled in - primarily the desktop - C++ is generally seen as a viable choice outside the G* isle, and even there you can find some significant exceptions (the de-facto FOSS vector graphics app, Inkscape, uses GTK+ and is written in C++).
And speaking as a KDE developer, I don't think I've ever met one of us who feels we're "stuck with C++". We're certainly critical of some of the warts of the language, and the community certainly includes folks who prefer and care strongly about some of the other languages we produce or have bindings for, and we're doing a lot of JavaScript on top of C++ foundations lately, but the overall sentiment is that in the grand scheme of things, C++ is ultimately the best choice for our core products.
When I said 'stuck', I actually meant 'had no other choice anyway' not, 'there were superior technologies but because Qt was in C++ they had to pick C++'. It's true that it's mostly systems programmers who are against C++ but at the same time I feel like it rubs off on the whole FOSS community.
And speaking as a KDE developer, I don't think I've ever met one of us who feels we're "stuck with C++". We're certainly critical of some of the warts of the language, and the community certainly includes folks who prefer and care strongly about some of the other languages we produce or have bindings for, and we're doing a lot of JavaScript on top of C++ foundations lately, but the overall sentiment is that in the grand scheme of things, C++ is ultimately the best choice for our core products.