There are a lot of closed airports that should not exist in the game. Just found one today in Germany. Eggebeck Air Base, ETME, was closed 1 August 2006! It’s now a solar farm and shows up as such on Bing and Google maps. But you can still select it in MSFS. There was another in USA that I reported a couple years ago and in Australia but I don’t know if they ever got removed.
And then you get airports like KSAC which only has 2 active runways but shows in game as having 3 (16/34 is closed and you can see the X on the runway in game.) And I submitted that ages ago with no change still. Maybe FS2024 will be able to fix these problems more easily. Dunno.