A project's completion won't ever be removed. The idea is when you reopen the project to add necessary tasks that made you reopen the project in the first place, your completion date will change to be the latest due date of the new tasks you've added/existing task dates you've adjusted. 

Honestly, grok and chatGPT give pretty thorough comparisons when you prompt them - try it out!

You can assign directly in tasks/issues within a project - here's a link for more info.

You're able to assign tasks/issues to multiple users or to a team...

Your report is just a collection of the data you want. A kickstart can help you populate data in WF in bulk (hopefully you won't continue to use excel and just enter data directly in WF moving forward). When you have the data populated - whether manually or via kickstart - you'd still need to create...

Sounds like you need to do a kickstart. More on that here. You will need to be sure the fields you want in your status report are mapped/exist in WF if you're trying to upload a bunch of project info for example. The article goes into detail.

You, can see setting options for this in the Queue Details tab of your queue project. Here's an article that goes more in depth about it.

Hi, you can run a document report, filtered to PDF or PPT (current version > file type) and can add a document name contains filter for any part of the file name to help narrow your results (can also use document entry date filter). This can help you find docs in the instance. If you're looking to s...

You can at least remove Boards from main menu options...that can help prevent users from using it.

Because of the limited real estate of cards, you can only add so much info at a glance. However, if you toggle on the option to add a custom field, you'll see other task/issue-related fields you can pull into the card details to show when clicking into the card. Not what you're looking for but just ...