On each my computers with a desktop (2xWindows, 1xOSX, 2xLinux) resides five (5) browsers (Edge, Opera, Vivaldi, Chrome & Firefox) and on each browser resides 70+ tabs. Given memory requirements, I keep these cultivated tab-farms in browser, but only run one browser at a time. Occasionally I will need to pull up another 70+ tab-farm browser to find some information, but keeping it up longer than a few moments is a dangerous game as I never kill my current browser. When my current browser does eventually crash (they all eventually crash), then and only then do I restart a previous browser as a new current default.
This is the way.