How can I hide column from other user (they can not unhide it)?

Asked by a customer.

Yes you can!

You can use: View level permissions to be able to create views with hidden columns (or filters) in your stack and then just add editors to that view. They won’t be able to unhide the columns, and only certain columns will be visible.

It’s added as a Powerup. Please make sure you have a plan with Powerups enabled on that workspace.