Would you rather the GM write up/buyl a hundred pages of setting knowledge and give players access to certain parts based of class/background/intelligence/etc. ???
This will also require a system of gaining access to more bits based on PC actions.
If you want some high quality TTRPG Youtube content, turn to EN World Live! The best TTRPG community on the planet also produces great Youtube on the regular!
https://www.youtube.com/c/ENPublishingRPG
Which is why WOTC should sell paickable locks for DMs to have players actually pick during play. Instead of rolling a dice, a GM can pull out a lock and some picks have the players do IRL lockpicking!
Say you have a problem player (or DM) in your group. You want to have an adult conversion with them to curb their bad behavior. How do you have an adult conversation? What does that even mean anyway? What if you or the problem player don't have the communication skills to have an adult...
What if "cooler" was replaced with "more realistic" or "more appropriate for the setting" or "fit in more with how everyone viewed the fictional position?"
If you're willing to look, I bet you can find plenty of TTRPGs out there that do operate like open source free ware! They just won't have the D&D label so many people here want.
I think you're all barking up the wrong tree by discussing rules. Cause we all know the rules are nothing compared to the power of the Dungeon Master.
So for my plan for a complete rebuild wouldn't concern itself with rules. I would...
Commission a musical about DMing. Many people don't...
Okay. Do you want resource management in your game?? Or tactical, or even strategic, thinking? Since figuring out when to resources can be quite tactical or strategic.