The thanks are rather avoided dry construction-encased downpipes in some corners where they are nicely ugly.
Hello,
Of course, unnecessary boxes should be avoided, but it is not such a problem.
Because you can certainly incorporate these boxes into the room design.
We have the downpipe and thus such boxes in the living room and have framed the TV with them and put LED strips on the sides.
No one has ever come up with the idea that there are pipes behind them.
Everyone thinks it was intentionally designed that way.
Best regards
Birgit