I solve this (really nonsense) issue with Hammerspoon and this simple script:

    local hyper = {"ctrl", "alt", "cmd"}
    hs.loadSpoon("MiroWindowsManager")
    hs.window.animationDuration = 0.3
    spoon.MiroWindowsManager:bindHotkeys({
      up = {hyper, "up"},
      right = {hyper, "right"},
      down = {hyper, "down"},
      left = {hyper, "left"},
      fullscreen = {hyper, "f"}
    })