Hello there, @jeancomings.
Yes. You can hover your mouse to the vertical dots that divide the column and move it to adjust the size of the width of the report. I'd be happy to show you how.
I'm adding screenshots below for your visual reference.
You might want to check out this article to learn more about how to customize reports: Customize reports in QuickBooks Online.
Please let me know if you need further clarification about this, or if there's anything else I can do for you. I'll be standing by for your response. Have a great day.