[15155]

If you give me a lever long enough and a place to stand, I will move the world.

The length of the 3090 with air cooling is what makes it so heavy on the PCIE connector - localized coldplate weight is not an issue.

[RL_Quine]

The water block is full coverage, the length of the card on both sides, and is a gigantic block of copper. With the water inside it’s even heavier.

[15155]

For the 3090 FE, at least, the card is half the length of the air cooler and an EKWB 3090 FE waterblock is the same length as the board.