How is this a brilliant

I know but it’s obvious

You have to take move evaluations with a grain of salt. Sometimes the evaluations don't make sense, it's just the way the computer is programed.

In this case, it's probably considered "brilliant" because it involves a queen sacrifice, and most lower level players are reluctant to sac their queen. I don't consider it to be "brilliant" because it's a common Puzzle Rush problem. I've seen it almost every time I've played Puzzle Rush, so it's immediately obvious.

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So butt

I'm stumped. What's the best way to walk around here?

Chess.com adopts too loose criteria for a brilliant move.
More reasonable criteria:

1. It is a winning move: drawing or losing moves are not brilliant.
2. It is unique: when two moves win, then none is brilliant.
3. It involves a sacrifice: that is aesthetically pleasing.
4. It is a quiet move: no check (+) or capture (x), as these are too obvious.

Here is an example of a true brilliancy: 30 Ba3
https://www.chessgames.com/perl/chessgame?gid=1031957

Here we go again. Another topic kidnapped by tygxc's nonsense. Facepalm.

This is brilliant

Queen sacrifices that win a game tend to get a brilliant moves, it won the game, a good move.