Ideally, we would have a fix for https://github.com/patternfly/patternfly-next/issues/2584 The monitoring dashboard tables use these style to prevent the headers overlapping: https://github.com/spadgett/console/blob/e07343fd3e7e11a910c54ddd8808bed1207d2ae8/frontend/public/components/monitoring/_monitoring.scss#L46-L53
Upstream fix in https://github.com/patternfly/patternfly-next/releases/tag/v2.60.0
taking a look
Looks like the upstream fix was pulled in by https://github.com/openshift/console/pull/5078, so only included from 4.5.
*** This bug has been marked as a duplicate of bug 1837784 ***
Contrary to my previous comment, the upstream fix is actually included from 4.4.