I really enjoy games like this where there's a balance between the real life context and simplifying them enough to have something to pick up and put down without having to have a ton of knowledge about the details.
I'll be using this to teach my kid about arrivals.
More stuff for plane fans:
ATC Sim in the browser https://atc-sim.com/
Various instrument simulators https://www.luizmonteiro.com/Learning.aspx
VOR Simulator Pro from Pilot Institute https://hub.pilotinstitute.com/vor-download
kennedy approach
This is a great game and a lovely use of the minimalism found in pico-8.
It would be cool to have a speed indication when a plane is selected or height but that makes everything more complex.
Again amazing game for the pico