If you're trying to convert widescreen content so it looks good on TikTok, Reels, Shorts, then for the most part you can crop a vertical chunk from the centre of the frame, and pan if necessary to keep the action in frame. Sometimes though the shot is too wide and you can't crop that vertical chunk out, so you have to crop it as vertical as you can and then add something to the top and bottom to fill out the frame, otherwise you have a whole shot that isn't in vertical and it breaks the flow of the video.
