They might not be concerned, but websites using new standards will slowly start to break for them.

Polyfills are standard for websites to be compatible with older browsers.

It will all break in time.

These things that look like institutions, that look like bricks carved from granite, are just spinning plates that have been spinning for a few years.

When I fight glibc dependency hell across Ubuntu 22 and Ubuntu 24, I sympathize with Firefox choosing to spin the 64-bit plates and not the 32-bit plates.

Not applicable, though javascript is a programming language not a standard library.

If I were a product decision maker, I’d be ok with that. It’d have to be a very unusual niche to make it worth the engineering effort to support customers who only run decades-old hardware.

Employees: “We want to use new feature X.”

Boss: “Sorry, but that isn’t available for our wealthy customers who are stuck on Eee PCs.”

Nah.