Apparently they didn't understand, I will try to explain better.
There are addons that use sppb-col-* classes to create columns of content within the addon, columns that cannot be controlled with the column editor of the SPPB editor, because it is based on classes that are in sppagebuilder.css. These classes are the ones that are using Bootstrap 3 breakpoints with only 3 breakpoints sm (768px to more), md (992px to more) and lg (1200px to more).
As you must have already realized, your sppb-col- classes only have 3 breakpoints, while the SPPB5 editor has 5 and to make matters worse they don't even match the breakpoint because for example your sppb-col-sm class is from FROM 768px to more, while the editor's is UP TO 767.98px.
*I'm talking about columns created by sppb-col- classes within addons not columns that are created within sections using the editor.**
Note: Following Toufiq's advice, do a new Joomla installation, install SPPB5, install Helix, create new page, drag Person addon, choose the layout that has the image on the right. The result is that it loads the sppb-col-sm-5 and sppb-col-sm-7 classes and as I said many times it has the breakpoint from 768px or more, when to coincide with the breakpoints of the editor and bootstrap 5 it must be up to 767.98px. THAT'S THE PROBLEM
Regards