Targeted Denoise

Denoise specified materials only, not sure if this already possible for interior archviz I'm purely interested in denoising my walls and glass etc. not the floor and fabric items in the room which I want to keep untouch.

implementation could possibly be via the materials section with a tickbox to denoise an item or potentially the use of a denoise node similar to a mix node which it place after the principled bsdf.

I'm probably missing something and you can already do it in the compositor with crypto matt/layers or similar, or probably best left to post production maybe?