To clarify, YouTube takes many cues from the viewers & recommends Shorts by understanding which Shorts they enjoyed in the past, topics or themes they view, or how much of a channel or topic they watch. More info here:
goo.gle/445I7pS
About your views, there could be a few reasons for them to drop. This can happen due to less interest in the topic or your target audience spending little time on YouTube. Learn how YouTube's search & discovery system works & what to do to improve your channel's performance here:
goo.gle/3SC6EjR