Whether in the long term this is net-beneficial for a given actor in the typical case, is at best unclear. This marginal-labor-cost/benefit-in-a-given-moment accounting misses a large proportion of the harmful effects of a layoff.
When a bunch of companies in one sector do it, it does lower wages and reduce labor power to e.g. demand better working conditions. That part, is a benefit for companies. But it's not the result of one company doing what's best for their particular situation—it's a result of coordination, even if only by the understanding that "this is what you do, when there's an excuse to, and especially when you see others doing it". It's merely best practice then, not... collusion.
Whether in the long term this is net-beneficial for a given actor in the typical case, is at best unclear. This marginal-labor-cost/benefit-in-a-given-moment accounting misses a large proportion of the harmful effects of a layoff.
When a bunch of companies in one sector do it, it does lower wages and reduce labor power to e.g. demand better working conditions. That part, is a benefit for companies. But it's not the result of one company doing what's best for their particular situation—it's a result of coordination, even if only by the understanding that "this is what you do, when there's an excuse to, and especially when you see others doing it". It's merely best practice then, not... collusion.