I am having two separate issues, so I will break them into two topics.
For the past month or so, anytime I have multiple tabs open, if I click on one after having not clicked on that particular time for some length of time, the page will reload. This happens regardless of the site, and even on locally hosted web cam GUI interfaces. If I click between tabs without that [unknown] time period having passed, the pages are still there and do not try to reload.
I am running Brave Version 1.18.75 Chromium: 87.0.4280.101 (Official Build) (64-bit) under Ubuntu Linux 18.04 LTS.