You need 2 query loop, nested.
First query
Set “parent” to 0.
Enable “Current post terms”
You will get only top level terms:
- Bathroom
- Bedroom and laundry
Second query
Nest this query in the first one.
Set “parent” to “{term_id}”.
Enable “Current post terms”
Take a look at
https://forum.bricksbuilder.io/t/how-do-i-select-parent-or-child-when-using-terms-query-loop/