Bit depth/color space conversion on export/save as PNG

Related: Krita exports weirdly HUGE pngs when colorspace conversion is involed - Support and Advice / General Questions - Krita Artists (krita-artists.org)

I like to work in 16bit linear color space in Krita. But the universal colorspace on the internet is 8bit sRGB, and while there is an option to convert to sRGB, it doesn’t convert 16bit to 8bit:

Please consider adding this option. Everyone who works in 16bit but exports to 8bit would be benefited!