With the new "moden" look & feel reports, lists, etc. how can all column widths be set and maintained?

Constantly adjusting the column widths and handling pop-ups, can be challenging, bnavarre and I'd feel the same way if I were in your situation as it disrupts workflow efficiency. In QuickBooks Online (QBO), column widths are initially fixed to a default setting.  However, you can manually adjust them to fit your needs.

I know how convenient it is when the column widths are consistent and maintained. Thus, I suggest sending feedback to our Product Developer team. They can review your suggestion and consider it for future product enhancements. Here's how:

1. Go to the Gear icon, then choose Feedback.
2. Enter your comments or product suggestions.
3. Click Next to submit Feedback.

Moreover,  I'll provide this article to guide you as you navigate through QuickBooks and manage your company: Understand the navigation menu in QuickBooks Online.

Your feedback and experiences are crucial as we strive to enhance our product. Please don't hesitate to return to this thread if you need additional help with QBO reports—I'm always ready to assist you.

@bnavarre   RE: I question if anyone who is implementing all of these changes has ever used this software as part of their typical duties. 

Oh, they most certainly don't! The people that design and implement QuickBooks Online do not use it. They're Intuit employees, not small business owners.

I doubt the reps even have access to it.

This suggestion is not helpful.  The columns repeatedly re-default to other widths meaning constant adjusting is required when performing repetitive tasks.  This also doesn't address the issue of the "contact" column not being adjustable.

Also, providing feedback has proven nothing more than a waste of time.  Not one item I've submitted for feedback in 10+ years has been resolved.

There needs to be a way for QBO to keep custom settings for different pages.