I checked recently and found scroll-behavior: smooth; should be supported by most modern browsers
https://caniuse.com/css-scroll-behavior

I removed smoothscroll-polyfill from package.json and added this to tailwind.css

html {
  scroll-behavior: smooth;
}

In tailwindcss it should be

html {
  @apply scroll-smooth;
}

and it worked totally fine here.

In case of motion sickness another line should be included according to this article

html {
  @apply scroll-smooth motion-reduce:scroll-auto;
}

Maybe we should consider remove the package and use the smooth scroll css instead?