Click Social supports video sharing to LinkedIn achieved via API. However, due to the way LinkedIn encodes videos shared through API, the quality of these videos is often lost.
For optimal quality, we suggest creating videos in a 16:9 aspect ratio or with dimensions of 640 x 360 pixels.
Posting videos natively on LinkedIn does produce higher quality videos, increasing the maximum height resolution to 720px. However, larger resolutions are scaled down accordingly, and native post gathering is unable to bring the video into Click Social due to LinkedIn's API limitations.