I was asking because I'm not sure that there is any toxicity from even inhaled Teflon so long as it isn't burned.

It was the manufacturing process where a related chemical was used that caused the uproar over Teflon, including regional environmental poisoning at the big plants where Teflon was being made.

There are other chemicals once related to Teflon manufacture that made their way into a wide range of consumer products from stain blockers to food wrappers.

In other words I am not worried about getting poisoned by Teflon since I don't live near a vintage Teflon factory and since I don't burn it.
The related PFOA and PFOS fluorocarbon pollutants (once widely used for stainblocking) have, I believe, been removed from the market.

Scary though to think of all of the chemicals in use whose dangers have not yet been realized. A ton of money can be made if the product stays on the market long enough to make the later liability payouts seem like a drop in the bucket, and/or if the company dissolves or files for bankruptcy. Not everything that's new on the market gets tested first.

I did a refurb on a 1970 Schwinn Supersport today and used the squeeze bottle lube on the lined rear brake cable housing. It's a women's step-thru model with a torturous cable path to the rear brake, but the lubed cable moves freely. A drop or two goes a long way(!), and unlike the aerosols there are no solvents to cause toxicity to penetrate skin.