Anyone else catch that triangular craft over Lake Michigan last Thursday night?

Bit off topic but bear with me - does anyone know if there's a reliable way to tell the difference between a genuine triangular UAP and one of those stealth aircraft? I'm new to all this and based up in Yorkshire so I've never seen anything myself, but I've been reading through loads of sighting reports lately and the triangular ones keep coming up again and again. Like what features should I be looking out for specifically? Silent movement, hovering, that sort of thing? The Lake Michigan report mentioned no sound at all which seems to be a common detail in these cases. Just trying to build up a bit of knowledge before I head out for my first proper sky watch next month.

@CornwallHawk honestly the flight behaviour is what you want to look at. Stealth planes still follow normal physics - they bank, accelerate gradually, make noise. If the thing hovers silent then shoots off at a stupid angle with no acceleration time, thats when it gets interesting. Also stealth craft dont usually have lights arranged the way people describe on these triangles.