s doesn't seem to count, I have a few transactions that are s brushed, originally calculated to be enough for 512, but during the update, that part of s was not counted, while the usdc part was counted.

Binance ALPHA's Sonic Chain public airdrop has some significant wear, basically 100U wear is around 1.5U. Some players are using $S to save on wear, which is quite clever (it's me, I used S to brush). Have you ever thought that the brush using $S doesn't count?