LIEBHERR Customer Service offered the following guidance and it worked! I used cardboard instead of crumpled newspaper. "First, use a 50/50 mix of bleach and water in a spray bottle. Remove all the bins and shelves, spray them down then let them sit for 20-30 minutes then wash with warm soap and water. In the fresh food and freezer sections, spray the interiors being very careful not to get it on the stainless steel or inside the fan housings. when you spray the back wall in the fresh food section some of it will run down and get into the condensate drain. That will also help clean and sanitize that drain and drain pan in back of the unit. Let that set for 15-20 minutes then wipe out both sections. Make sure to be careful with the bleach mix and your clothes, flooring, and the stainless steel. Liebherr Service offered the following guidance and it worked! PI used cardboard instead of crumpled newspaper. Then install the drawers and shelves in both the freezer and fresh food section. Turn the unit on. In both sections: take used/wet coffee grounds on a plate and set on the top shelf/drawer. Then take 2-3 pieces of news paper and crinkle it up and put in the lower drawer in each section. Let the unit run for about 24 hours and see if that takes the smell out. This process may need to be done several times but usually does a good job of eliminating the odor and smell." Thank you all for your input!

The issue with small pulls on the big heavy door refrigerators is damaging the panel. The panel is what the knob is attached to, so all the weight and stress of puling the door open is placed directly on the wood panel. Having a small pull or knob puts that in a small part of the panel...and will likely cause the panel to fail at some point. The SZ units are somewhat harder to open because of their refrigeration system. The new thermadors as stated above have a push to open so thats a possibility. Otherwise you can do a pocket handle on the SZ if you have a reveal to allow your fingers space. This would allow for a handleless install as well.

As ringreation mentioned, SZ fridges need a real tug to open them. Quite a hard tug. I recommend you go to an appliance store that carries them and see for yourself. I doubt the finger pulls you linked will give you enough grip. There’s a ton of minimalist kitchen photos online with SZ fridges. Look at those for inspiration. Your zeal for minimalism may get in the way of functionality.

I'll leave it to others to suggest sources of already fabricated handles, if any. However, if 'sturdy' for you is commensurate with the stainless steel pulls SZ/Wolf sell for their equipment, then options include: Buy SZ handles and have them flame sprayed or plated. Result may not look brushed without further work. Some wear over time might require re-plating. Have a metal shop fabricate them from brass rod (widely available). The number of holes, cuts, and rounding steps will be modest for most common drawer handle shapes. Expect them to be weighty if SZ handle sized. For the latter case, look closely at your drawer pulls and imagine the diameters and lengths of the three parts scaled up.