Is this just a chrome scroll bar thing where we have to deal with it?
It looks like the scroll bar is for scroll down/up the report page, right?
I have test withe the same Chrome browser version 73.0.3683.75 (Official Build) (64-bit) and the scroll bar is available for us to scroll down/up the report page. In your scenario, please check if the you are using the same mode (Actual Size) as in IE 11 browser.
Best Regards,Qiuyun Yu
@v-qiuyu-msft If you notice the concern isn't with the scrollbar availability, the concern is with the scrollbar missing the arrows at the top.
My picture of IE shows the same but it's scroll bar has arrows, then the picture of the chrome one shows the same but it's scroll bars does NOT have arrows. In your picture there are no arrows in that scrollbar.
I have reported this issue internally: CRI 111373087. Will update here once I get any information.