The game Fire Emblem Engage was complete in 2021 and was originally slated to be released that year as a 30th anniversary game for the franchise, but according to sources at Intelligent Systems its release was delayed two years because of COVID related issues, which if the game was done and just sitting on the shelf, I would imagine had to do with supply chain complications. If a game can be delayed that long by those issues, it wouldn’t be too hard to believe that console upgrades could be slowed by that too.