When viewing it more as an all-in-one tool, you're starting to compare it more with apps like Notion and Coda, but what's also a bit strange is both of those tools were built more as knowledge base software, and have evolved more into the "all-in-one" category.
This is where things get difficult to prescribe without deeply understanding your specific use-cases. We believe that rarely are the "all-in-one" tools best for companies, as we strongly believe in using the best tool for the job. That said, ClickUp is definitely the most "Task Management" focused tool of the bunch. Meaning, if you want to rely on getting timely alerts for getting work done and project completed, ClickUp will handle that better than Notion on Coda.
Although, if documentation and almost a form of "no-code app" building is more important to you, that's where Coda or Notion will shine.
And this is the exact problem we have with this category. It does many things well, but it's consistently missing the last 5–10% in every category, which might not seem like a big deal, but I assure you that it'll frustrate the team.
So with all of that said, that's where we typically recommend using a tool like Motion as your Project Manager, and then Slite as your documentation/shared team collaboration tool (I would also say Notion, but it suffers from the all-in-one syndrome as well, that I fear you'll start trying turning Notion into your team's project management tool given enough time using it—which is not ideal), versus trying to just fit them all into a single product.