image quality - Illustrator: how to draw smooth lines - Graphic

I am creating logos or illustrations which display as pixelated lines. I am using the pen tool, any settings i should change or any tool i should add?

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How to Draw Smooth Lines in Illustrator with the Smooth Tool

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How to Draw Smooth Lines 40 Easy Lessons on Drawing Smooth Lines

image quality - Illustrator: how to draw smooth lines - Graphic Design Stack Exchange

I Turned My Preschooler's Drawing Into an Artist-Quality Illustration with DALL-E, by Thomas Smith, The Generator

How to Draw PERFECT, Smooth Lines on Your Tablet (3 Life-Saving Tips)

Husky Dog Face SVG 2 in 1 in Black and 2 Colors