Change more SVG path color when hover

Answer 1

Maybe with some CSS variables. You cannot target elements inside the use but you can rely on inheritance to pass some values.

.icon {
  stroke-width: 0;
  stroke: currentColor;
  fill: currentColor;
}

a {
  color: red
}

a:hover {
  color: pink;
  --s1:green;
  --s2:blue;
  --p1:purple;
  --p2:yellow;
}