Discipline. - a macOS Big Sur icon pack with 100+ icons
Freepik - More than a million free vectors, PSD, photos and free icons. Exclusive freebies and all graphic resources that you need for your projects
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The Noun Project - Creating, Sharing and Celebrating the World's Visual Language
macOS Big Sur icons - Original icons in PNG ready for download
Streamline icons - The world’s largest icon pack library - 100k icons and illustrations.