i got a brilliant ! care to explain why this is a brilliant move?

https://www.chess.com/analysis/game/live/48001833171?move=21&tab=review&classification=brilliant&autorun=true

I have no idea. Maybe some glitch?

But main idea is to get Knight out of the way - to free bishop and queen, because White is ahead in development

not really, because when  he went c3 it says it was a missed oppurtunity to win material

thanks guys for the feedback i do get these moves every now and then but its brilliant according to the engine.. i am just curious to know why it thinks this was the best move so i can develop my game with that depth.. but it is hard to understand on my own i think my main intention was to put his queen under threat as well

The exchange would lead to you being up in position and you have more control over the board after exchanging Queens leading to a brilliant sacrifice to open the board and allow trades