H-Brdige MOSFETs getting hot despite no load
2 things you need to modify on the board.

You have used 1 source pin of MOSFET as VSSA of MOSFET driver and others for connecting to lower MOSFET while you should short these two source pin of one MOSFET together externally.

use 22uf and 0.1uf capacitor in parallel as a bootstrap capacitor.