Floating Point round trip workflow in C1 20

I've had this wish for a while now but I can't find an answer.

I'm taking landscapes and primarily multiple images for focus stacking and rarely exposure blending.

I want to be able to do basic camera decode, debayer / sharpening / noise / Lens distortion / CA, etc. inside of C1 but specifically not start messing with specific tonal local / global adjustments such as clarity, highlight, lowlight recovery etc.

Then export in a floating point image container and perform image stacking / blending in PS or Affinity and return a rendered file with all the original range of colors to C1 for final adjustment / post processing.

Since C1 doesn't support 32bpp Tiff export I seem to be locked out of this workflow - how can this be achieved.

Thx

Andrew Mumford