Glass sliding door with recessed handle + own handle bar

Width is 100cm, I took some pictures.

Our offer includes a side-mounted door closer box, that is a stainless steel box where the door, in its end position, is recessed a few centimeters, and a brush seal is installed there. The door is currently offered as ESG. VSG would supposedly be "much more expensive." But since I have read that VSG has better sound insulation, I am torn: ESG = good offer; VSG = promotional set not possible and then I estimate about 50% more expensive.

How much better is the sound insulation of VSG compared to ESG really? Is the extra cost worth it (the door basically separates the living, dining, kitchen area from the "rest," i.e., the transition to the hallway with the adjacent staircase)? Anyone? maybe?

I can't imagine that right now. Laemschutz hardly works with glass sliding doors.