It's especially painful as some of the greediest modern games released (COD franchise) used to have some of the most flexible modding tools I've ever worked with.
COD4 was incredible, could change pretty much everything about it, custom maps, modes, models you name it (here's one I worked on back in the day https://www.moddb.com/mods/cod4-minigames).
I agree Roblox is a cesspit of overly monetized P2W experiences, and minecraft from what I've heard has most its audience on micro transaction (p2w) based servers.
As I mentioned in another comment, fingers crossed s&box can bring back the glory days. Although I worry there's now been a shift in how people play, and the "why" people build things (money, versus personal gratification / fun), similar to how the same thing has happened on Youtube (most people don't seem to create for the fun of it anymore, but rather to make money).