Question about Dreame L20 Ultra Complete

How high can the Dream overcome door thresholds? My current Roomba usually just about manages it, but sometimes it gets trapped in the bathroom and can't get out. That's why one of my main reasons for buying a new robot hoover would be whether it can safely negotiate my doorsteps so that it can clean the whole flat and all the rooms without manual intervention. Does anyone have any experience or even a comparison with other robots like Roomba?