You need to know what you have. Other people have teased out that you have a MacBook Air, but there’s several different versions.
Apple hardware for like twenty years has used two types of naming conventions, the Trade Name (Approximate Date) and the Trade Name Number,Number designation. You might have a MacBook Air 7,1 for example which is an Early 2015. The TN N,N is the model Identifier and the TN (AD) is the model.
You can find out what you have by clicking on the apple menu in the upper left hand corner and choosing “about this mac”. The window that pops up will tell you the model and if you click “system report” you will get a ton of information that should have the model identifier somewhere near the top.
You can also look up the serial on the website everymac.com and it’ll tell you a best guess which is almost always right!
Once you’ve done that you can much more effectively search for the pitfalls of installing Linux on that computer.