I think I'm missing a line, why is this move not good? Amn't I winning a rook?

This photo is why chess is the most beautiful game ever made

This beautiful mate i missed in my last game

Just a beautiful 1000 elo blunder

why is this a brilliant move?

Lost by time. Would i win? Black to move (900 elo lichess)

Finally some brilliancy on my chess career.

My very first, 300 elo 3min speed chess

First game of the day and I get threatened. 😭😂

What about it?

He resigned right after this. 💀

Tf?

What about it?

Like what

This is my first brilliant move but dont get why this is a brilliant move?