RPGMemes

I'm just gone give you a quick run down of the simplest ttrpg i play; Chronicles of darkness.

Every single roll uses the same type of dice and the numbers you need to hit are almost universally the same. Every skill, ability, power, or what-have-you uses the same simple system (with only two ways to resist/contest roles). All characters (including NPCs and monsters) are created in roughly the same way with roughly the same rules (with certain stuff added on depending on what you're making). The book has an entire section on homebrew, with guidelines and examples. Every book has advice on playing ttrpgs broadly (like setting up what's off limits from the start) and specifically Chronicles (like offering sources of inspiration). Speaking of books, there are plenty of them but you only need a single book to play a full game. The game also uses a major cheat code for the setting; it's set in the modern world, so new players have an easy time understanding what's going on.

I say all of that to say 5e is all together bad for new players. It's price gouging, it's convoluted, and isn't actively friendly to new players like other systems.