Correct, the Node b’Yehuda writes against the practice of giving 2 names.
The Sdei Chemed disagees
Correct the Chazon Ish disapproved of the practice of giving 2 names, R’ Eliyashiv zt”l disagreed
The Chazon Ish did even suggest that if naming after someone who wasnt Shomer Shabbos, one SHOULD add a name. But one shouldnt name after 2 people.
Two names also are a segula for Kiyum Habanim, Arichus Yamim, and Chaim Aruchim, moreso than one name.
All the above was taken straight from the sefer “V’yekarei Shmo B’Yisroel” Starting with Daf Ayin Tes (the chapter about two names)
From all this, HALOCHA L’MA’ASEH – one should REFRAIN from giving two names unless it is necessary!!!
Sorry, there are plenty of Gedolim who hold that there is no issue, some even think it is a positive. Please view all sides, don’t see part of the story and decide to pasken improper “HALOCHA L’MA’ASEH”