I use onenote as my prime note taking app.Did try clickup & its very feature rich compared to MS Onenote.Its very nice application for project/Task creation tracking with nice UI for tracking & lots of templates to go with.

But its for sure need major updates for better usage.Below mentioned are some of it which i found pain to work with are

1)Editing inside the table,Any cell needs to be individually selected for any format updation.Very limited formatting option available compared with onenote.

2) It would be great if we are able to import spreadsheet & use it like normal spreadsheet inside the workspace with all major features(formulas etc,tables,formating) of spreadsheet working. At Least Tables has to be a solid feature with ability to update,format,aligh with ease.

3) Only 3 fonts available & will be good to have more.

4) In Doc ,good to have option for page color.

5) Currently due to above limitation,i can use clickup applicaiton only for tasks mapping & tracking & not really note taking.

Please do update above features on priority to make it an all comprehensive note taking application as well.