Personally, I often find these large washstands with sinks + cabinet and matching mirror cabinets bulky rather than beautiful....as always
You are currently planning the bathroom: but there is a huge difference between that mentioned model and a washstand set. You can update the 80s model with a period-typical model for a really very small additional cost.
Moreover, there are inset or countertop sinks for “relatively little” extra cost, which mounted on a worktop cost much less than the ready-made sets. Add a mirror from a flea market or Ikea...
Overall, it is also about avoiding dirty corners and creating storage surfaces. The bathroom gains a wellness value when many things are coherent and tactile.
An Alibert cabinet (even more expensive anyway) with a height of 140 and/or a wobbly lower cabinet from the hardware store made of hard plastic is something I would never associate with wellness. Neither would that sink from above.
A bungalow can sometimes also be cleverly downsized. By the way, using an open kitchen with an island is much more space-saving than a closed kitchen. You can save about 5 sqm of living space as well as a wall and some doors, thus at least €10,000.