There is a lot of information in the discussion on the bitcoindev mailing list
https://gnusha.org/pi/bitcoindev/7U8YuMopR73k4XRYBA8DjhaGLJkyKPuXpxW9p7vmH45JHEyIj_oE_t4xk99hrNdvMGghpmooAMXOmWGaZ4UkwHPndzrpzIL0SX2SoTf0l3w=@proton.me/T/#mac89c9913b2c783d9ad382486f1a176811bd3145