Or on screen. I think you meant on screen.
Here's a prior answer.
https://productforums.google.com/forum/#!topic/chrome/BnI6QInBHC4
This is not a Chrome setting as this is a Windows font setting (Title bar and other things.) I see folk want Chrome to change that bar but it's not up to Chrome but Windows.
How/where is this setting? Buried a little, Read https://www.tenforums.com/tutorials/70839-change-menus-text-size-windows-10-a.html to see where and how.
Just had Windows 10 installed.I use Chrome browser.ALL the printing in the bar is super tiny.Need a magnifying glass tiny.Every word in the bar is this way.Can't find a way to magnify the words.I can magnify the print on the regular page,but not the bookmark bar and it's contents.

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