Folder Views on iMac

I should not have replied on an empty stomach! 🥴

Image #1: Your computer's current folder view setting - 'List' View.

Image #2 Column Expander and Collapser Button - in 'Columns' View

Image #3 - 'Icon' View

The Automatic Viewing that I described is in 'Icon's' view, which is the icon to the Left of your 'List' view setting. It is in 'Icon' view where you can change folder view setting - as instructed earlier - where you can see the full name of your folder and file.

I was in a rush to eat, so here is my full answer. 😃

Boot into Safe Mode according to How to use safe mode on your Mac and set the Name column with the Option key held down and set it to be the default. Create a new folder and test to see if the problem persists. Reboot normally and test again.

Hold down the Option key when you adjust the Name column size in the Finder window. That should make it stick to the size.

You will have to do it to any existing folder that you open. Create a new folder and set the size to what you need. Then open the Finder ➙ View ➙ Show View Options menu and click on the Use as Default button. That will set the size for all new folders.

Automatic viewing:

1) When viewing as 'Icons', select Action>select Show View Options>slide bar on Grid Spacing to right.

This looks messy on screen, but you can see your folder and file's full name.

Current default viewing settings:

2) Double-click on the two vertical lines between the columns to expand either folder or file names.

The folder view will go back to default collapsed view after closing Finder.

Minimize the most used Finder window(s) to your Dock instead of Closing them.