There was a change in the overall scrollbar behavior in Kibana, some time after 7.14.

In 7.x up to 7.14 the scrollbar disappeared when not scrolling which left a clean UI, but with more recent versions it is basically hardcoded on, and done so in such a way that the UI is different when there's a scrollbar. It's kind of jarring when using the interface, especially when trying to make tutorials or even just basic screenshots.

I'd love for it to go back to the way it was, but at the very least can it be made to not shift the entire UI? Screenshots below.

Kibana version:
I think that this problem was introduced in 7.15 or 7.16

Elasticsearch version:
Any

Server OS version:
Any

Browser version:
Chrome, safari, or Firefox

Browser OS version:
Windows or Mac

Original install method (e.g. download page, yum, from source, etc.):
Multiple methods

Describe the bug:
When the scrollbar is present the entire UI shifts

Steps to reproduce:
(note that these links are only accessible for elastic employees, instead see the screenshots below)

1. See that the dashboard from a 7.14 install exhibits the desired behavior
2. Compare it to this log stream page which has a scrollbar and this infra waffle map which shouldn't

Expected behavior:
The scrollbar should only show up when scrolling and not completely change the UI when it's present
Screenshots (if relevant):

This is what it looks like now - the whole banner shifts:

This is what it looked like in <= 7.14 - notice that, when scrolling, it's just a subtle overlay without impacting the entire layout

Errors in browser console (if relevant):

Provide logs and/or server output (if relevant):

Any additional context: