[teleforce]

Is there any open source hybrid vector and bitmap drawing tool?

I used to use Xara Extreme and it's very fast, intuitive and handy mainly due its hybrid features. It's also used to be open source but not anymore:

http://www.xaraxtreme.org/

[mkl]

Xara was never fully open source. They kept the renderer proprietary, so it never really had a chance.

[lavela]

Graphite has raster editing in their roadmap[1], but afaik it's not really there yet.

[1] https://graphite.rs/features/

[stuaxo]

Krita is the big one.

[JayDustheadz]

Krita doesn't have good vector controls, sadly.