"Over the last decade or so most of the world’s advanced nations have established some sort of cyber warfare capabilities. This is a capability to break into other nation’s computer systems... A few 0-days get leaked and can be used by hackers. But the large majority are sold for hefty sums and tucked away in government vaults to be used in some hypothetical cyber conflict."
In fact, this started almost three decades ago, circa 1996, when MS, to avoid being broken down, began to send updates to the powers that be one month before being released. Word was -confirmed post-2013 (ahem)- that this deal worked perfectly. MS survived, and only lost control of the browser market, now in control of GG, which more likely than not has a similar or enhanced (as we know with disclosed certainty since, again 2013) degree of business-government collaboration.
However, absent an evil maid, most of the potential damage can only come from using integrated browsers, media players, and the multiple frameworks that make life easier (tsk) for the normal user. Cripple those, and you are on the safe.
"The problem is always content loading, or rather a failure to load all or parts of a website’s content. My best guess is that the JavaScript code in these malfunctioning homepages are too modern"
Rather than more modern, they are more convoluted, and other than big social media (or their wannabes), you can tweak mypal, or serpent52-55 to load most content. Most content you cannot watch or process you can in a virtual machine, or in a vanilla browser/media player, either directly, or downloading it for slightly delayed enjoyment, without all the adds and crap (spyware, nagware, etc) that "the more secure environment" promoted by modern browsers and media players. As per GGdocs, MS365 and the like, I don't like to have my head in the cloud, and (again) there are many ways - just as using your cellphone to still be able to trick them into working for you. If you check
https://msfn.org/board/forum/201-browse ... mily-oses/ you can even find modded chrome hacks still doing most of what is needed. For what doesn't work even there (for example, is you hard block GG spyware -analytics, fonts, and the such), a cheap second market chromebook (or even better, if you care for some privacy, Linux-Mint second hand laptop) do the trick.