I was wondering to which year of employment level will all the lay-off roll back. For instance, FB has the same number of employees as they did back in Jan 2022

I was wondering to which year of employment level will all the lay-off roll back. For instance, FB has the same number of employees as they did back in Jan 2022 after the laid-off. Let's say the employment level went back to 2018 for the tech industry, would it be a bad thing? The packages back in 2018 were still pretty cushy.