Name 1 case that we can evaluate 10 years after the layoffs.

Adobe

Can you share more information? I just looked at their Wikipedia entry and they spent 2018- basically doing acquisitions. What were they layoffs you were thinking of? It's hard to find historical data from 2016. And what's their new focus? It looks like they still have the same huge roster of apps.

Sure

https://www.sfgate.com/business/article/adobe-laying-off-600...

https://www.cnet.com/tech/tech-industry/adobe-to-cut-9-perce...

https://www.cnet.com/tech/tech-industry/adobes-transition-to...

They went through a heavy period of layoffs for a few years and now are killing it and it meets your criteria of about 10 years ago

Have you run a team or business before? You seem very much ill equipped to actually engage here.