alt Hacker NewsGiving up to 3 months of notice to change jobs is wild. What are the consequences if you tell them you're leaving in 2 weeks instead of the notice period?
Typically in US tech companies layoffs don't give employees a notice period, but they do give severance pay. So you stop working effective immediately but you either get a large check or continue to receive paychecks for a period. That period depends on the company but it's usually within the range of your notice period. You don't have to work during it, though.
For very senior staff they can get an injunction against you, stopping you from working elsewhere. For lower staff they can withold unpaid wages and charge you for the cost incurred of getting the temp cover up to the notice period. Given how high temp/contractor wages are compared to employee costs, this can be an insane number, especially in tech where an employee might be on £200 a day, but a contractor might charge £500-1000 or more.