What is the difference between exporting either as a DWG or a DXF file from Sketchup to ACAD?

Thank you.

Dwg is a binary format while dxf is text based. The text will usually require a larger file than binary but the content is supposed to be equivalent.

Here is an article that explains it too. As slbaumgartner says, it mostly about compatibility with programs that can’t read dwg:

use DWG if you can, check/analyze/convert with the free ODA ‘Drawings Explorer’ f. Windows & macOS if needed.

Thank you. It is clear now!!!
In short, to use DWG for importing it to SU is fine, but using DXF is ok too.