You have no idea what you're talking about. You can absolutely increase someone's workload, always. It doesn't mean shit will get done, but you can absolutely give them more responsibilites.

And lol at your last sentence. Meta had to hire back some of the people they laid off. It's hilarious that you think layoffs have anything to do with performance. They don't. The performance angle is a lie that the vain tell themselves because they think everyone else is lazy. It could never happen to them, except it will, because these layoffs were about cost only.