The benefits could be way more immediate. Less supply might drive the price up, leading to less usage.

3M killing production and other signs of the product not having a future can drive away investments into competing suppliers.

Nature has no replacement for the electronegativity of the fluorine atom.

It seems like there are many usable substances which are hydrophobic (usable as a water repellent). Not so many alternatives which are oleophobic (oil repellent).

I am sure proper research is being conducted to find replacements.

https://iopscience.iop.org/article/10.1088/1742-6596/1904/1/...

There are oleophobic alternatives, but nothing durable. Durability is proportional to the chemical bond strength.