We repainted one of our kids bedrooms with an emission free paint (IIRC, https://www.auro.de/en/products/walls-and-ceilings/dispersio... ) instead of the usual latex wall paints. Painting without the usual smell felt really strange. Particularly so for my spouse, who easily gets a headache from strong smells.

Also, if you read the fine-print on normal latex paints, the recommendation is to not live in the room for a month after painting. I don't know anyone who has ever followed such..