My S7 cannot manage thresholds with a rectangular profile of 2 cm (e.g. on a flat door). It should be able to cope with flatter/less angular thresholds, mine managed one of approx. 1.4cm with a right-angled profile.

Under the internet query "Roborock S7 door thresholds" you can find answers. In our case, we do not have any door thresholds worth mentioning.