This article is completely incoherent. I just opened the BBC website with flotato and it's over 100mb. And, ram usage doesn't make your fans run. And, "nearly 80mb" or over 100mb, whichever it is, both are pretty inconsequential amounts of RAM on anything close to a modern Mac - unless you're somehow displaying and interacting with 30 browser tabs all at once. And lol at "There's no plugins, browser renderer..." --- WHAT IS RENDERING THE FLOTATO PIXELS?
So blatant ad for utterly useless app. Shame on you.
At least, you might to investigate what causes such difference in memory usage. Was it Chrome itself or Crome extensions? Was it Chromium engine — employed by Edge as well — or parts that are above the engine? So, what about Edge? Finally, what part ads (that might be automatically limited by some browsers) played in that?
No really useful information. How much did Flotato creator pay you for this article?