Question Is there a way to disable conversion of framebuffer to gamma space?

I am using URP 13.1.8 in Unity 2022.1 and I am trying to visualise some vector data by writing vector values mapped to [0, 1] range to colour.

The pixel values in the resulting render are not what I expect, for example I expect a vector (0, 1, 0) to be rendered as RGB(0.5, 1, 0.5) but the actual pixel value is RGB(0.74, 1, 0.74).

I believe this is caused by the conversion of the rendered image to gamma space. If I switch the colour space to gamma space I get the values I expect, however this takes a long time and also it seems to generate lots of unwanted extra data.

Is there any way to disable the final conversion of the image to gamma space and just see the linear values?