If you want to give your Linux distro a fresh look then icons are an integral part of it, so without wasting time, let's see best icon packs for your PC.

1) WhiteSur icon theme

if you wanna make your Desktop look like macOS then this icon pack is definitely for you

Link: https://github.com/vinceliuice/WhiteSur-icon-theme

2) Deepin icons

These icons are inspires by Deepin OS and have Glassmorphism

Link: https://github.com/zayronxio/Deepin-icons-2022

3) Candy icons

These are my favorite icons , they have very modern and simple look and feel

Link: https://github.com/EliverLara/candy-icons

4) Reversal icons

A colorful Design Rectangle icon theme for Linux desktops

Link: https://github.com/yeyushengfan258/Reversal-icon-theme

it has many color schemes too

5) Win11 icons

These icons are based on Microsoft Windows 11 design

Link: https://github.com/yeyushengfan258/Win11-icon-theme