I have absolutely zero issues on 10 year old hardware with 16GByte of memory. Hundreds of tabs (Firefox is really good about moving them out of memory when they don't get used for a while - which, lets be honest, are almost all of those tabs) and the normal everyday onslaught of office software, a fat IDE, and a CAD editor.

This stuff is not rocket science. It's not even performance gaming. We worked efficiently in 2013, and it still works today. All it takes is some memory and a halfway decent SSD.