If you read the factory service manual, you'll see references to dekaflex 8089, sicomet 85, SAE30, Universal Glue D12, and generic grease when doing services on doors.

What are your favs for the window lift bracket and other door maintenance?

I am a big fan of Teflon spray you can get at any good bicycle store.

Teflon spray sounds good, I can tell you that some grease, like the thick white stuff I have been cleaning off the original inner door lock mechanisms gum them up and make stuff worse! don't use that stuff.

You can get “dry lube” at a bike shop. Usually a combination of Teflon and Patricia with a carrier that evaporates to leave a dry coating that doesn’t attract dust and dirt. Also good for all tha latching mechanisms, inside the cable pulls and great for the wiper mechanism pivots. The less force needed to move the parts, the less chance of breaking them. Especially the door opening flaps.