Yes, it is possible however there are practical and efficiency matters to consider.
Concealing the necessary ductwork may be an issue if accessible voids are not available.
An MVHR system needs to be “balanced” with the amount of supply air to living rooms equalling the amount extracted from wet rooms. If the property is not relatively airtight this can be problematic when commissioning the system and during its life causing it to not be as effective or efficient as it should be.