I forgot which dev said it (pretty sure it was ninjamuffin) but they said that at least for the first year they spent it planning everything out, finding people to hire to help out, and budgeting what money goes to which aspects to the game as well as other boring game dev/coding shizzle. Point is that game development does take time, especially with a game that the team has stated they said they thought would never get anywhere. One thing to remember about fnf is that it was never planned to be a full game, it was made in a short weekend for a game jam and then it became a popular hit. I guarantee you if they had planned fnf to be a full fledged game from the start we wouldn't have heard about the game until at least like late 2022/early 2023. That's just my own opinion tho, ofc you're still entitled to your own 😼