A method performed by a computing system, the method comprising: receiving a plurality of streams, individual streams of the plurality of streams comprising a video component; receiving orientation data from a sensor mounted to the computing system, the orientation data indicating that a display screen of the computing system is in a portrait orientation; in response to determining that the display screen is in the portrait orientation, causing a display of a first user interface arrangement comprising individual renderings of individual streams of the plurality of streams, wherein the individual renderings each have a first aspect ratio; receiving additional orientation data from the sensor, the additional orientation data indicating that the display screen transitioned from the portrait orientation to a landscape orientation; and in response to determining that the display screen transitioned from the portrait orientation to the landscape orientation, causing a transition from the first user interface arrangement to a display of a second user interface arrangement comprising updated renderings of the individual streams, wherein the updated renderings each have a second aspect ratio; characterized in that: the first aspect ratio is greater than the second aspect ratio, and the method further comprises: analyzing the plurality of streams to determine that at least one stream of the plurality of streams depicts at least a threshold number of people, wherein the threshold is at least equal to two; and selecting a fixed aspect ratio for the at least one stream, wherein the fixed aspect ratio overrides an association with the second aspect ratio, wherein a rendering of the at least one stream is displayed using the fixed aspect ratio when the display screen is in the portrait orientation and the landscape orientation, the fixed aspect ratio being greater than 1:1. receiving a plurality of streams, individual streams of the plurality of streams comprising a video component; receiving orientation data from a sensor mounted to the computing system, the orientation data indicating that a display screen of the computing system is in a portrait orientation; in response to determining that the display screen is in the portrait orientation, causing a display of a first user interface arrangement comprising individual renderings of individual streams of the plurality of streams, wherein the individual renderings each have a first aspect ratio; receiving additional orientation data from the sensor, the additional orientation data indicating that the display screen transitioned from the portrait orientation to a landscape orientation; and in response to determining that the display screen transitioned from the portrait orientation to the landscape orientation, causing a transition from the first user interface arrangement to a display of a second user interface arrangement comprising updated renderings of the individual streams, wherein the updated renderings each have a second aspect ratio; characterized in that: the first aspect ratio is greater than the second aspect ratio, and the method further comprises: analyzing the plurality of streams to determine that at least one stream of the plurality of streams depicts at least a threshold number of people, wherein the threshold is at least equal to two; and selecting a fixed aspect ratio for the at least one stream, wherein the fixed aspect ratio overrides an association with the second aspect ratio, wherein a rendering of the at least one stream is displayed using the fixed aspect ratio when the display screen is in the portrait orientation and the landscape orientation, the fixed aspect ratio being greater than 1:1. analyzing the plurality of streams to determine that at least one stream of the plurality of streams depicts at least a threshold number of people, wherein the threshold is at least equal to two; and selecting a fixed aspect ratio for the at least one stream, wherein the fixed aspect ratio overrides an association with the second aspect ratio, wherein a rendering of the at least one stream is displayed using the fixed aspect ratio when the display screen is in the portrait orientation and the landscape orientation, the fixed aspect ratio being greater than 1:1.