Who each tool is really for
Monday
Monday positions itself as a work platform with packaged products built on top, including a sales-oriented offering. For teams evaluating it as a CRM, the attraction is that a good deal of structure arrives ready-made, with boards, views and automations that look like a pipeline without being assembled from scratch. It suits companies that already run operations there and want sales to join rather than to leave.
ClickUp
ClickUp positions itself as an unusually flexible productivity platform, where almost anything can be modelled with lists, custom fields, statuses and views. As a CRM it is typically assembled rather than adopted, often from a template. It suits teams with someone who genuinely enjoys building systems and wants the process to match their own thinking exactly.