D&D has changed significantly over the years, with each edition making new choices about how simple or complex to make the rules.
Each edition of Dungeons & Dragons has a different idea of just how complicated it should be to play D&D.
DnD Actions - Quick Reference PDF - Dungeon Masters Guild
Simple D&&D Rules
D&D Basic Set Rulebook (B/X ed.) (Basic) - Wizards of the Coast
DnD 5e Character Sheet Digital PDF for Dungeons and Dragons 5th
The Simple RPG Large Print Edition: Core Rule Book: Sedara
Is there a simpler version of D&D? - Quora
Dungeons & Dragons Basic Game (2004 & 2006 editions) – Wayne's Books
D&D's next iteration needs to keep it simple — but that's
D&D Adventurers League 10-10 Burying the Past for Fantasy Grounds
OC] [5E] I Made a Minified Character Sheet for First Time Players
D&D 5E - The Beauty of D&D, Attitudes Towards Change, and a Letter