Nobody sits down and designs a Zapier account. One person builds a Zap so they stop re-typing form submissions, somebody else builds three more, and two years later there are forty of them, half of them owned by people who have changed roles. It works, mostly, which is exactly why nobody opens it.
Then the bill stops matching the business. Zapier charges per successful action step, not per Zap run, so one enquiry that creates a CRM contact, adds a spreadsheet row, sends an email and posts to Slack is four tasks rather than one. Put a loop over the lines of an order in front of that and a single trigger can spend hundreds of tasks without anybody noticing.
None of this is an argument for leaving Zapier. The catalogue is the reason you chose it and it is still the largest in the category by a wide margin, which matters more than any feature comparison when the app you depend on is an obscure one. Zapier just repays being built deliberately: the free steps deciding before the paid steps write, errors landing in front of a person, and connections that do not belong to one employee’s login.