Do you have a source for that? According to this they haven't had layoffs yet, but it's widely expected they'll announce them in the near future:

>Although several major companies across the tech industry have announced mass layoffs as rising inflation and uncertain macroeconomic conditions fuel recession fears, Alphabet Inc., the parent company of search giant Google, has been obviating this undesirable. The tech behemoth is yet to announce any major layoff, despite several reports of upcoming job cuts inside the company.
However, Alphabet employees will not be immune to this industry-wide layoffs for too long. Employees at Google anticipate an imminent announcement of a huge layoffs, according to reports.
In November, The Information had reported that Alphabet was planning to lay off nearly 10,000 low performing employees starting early 2023 in order to curb costs.
Slumping ad market has weighed heavily on Google's bottom line, which in turn has made investors urge the company to seek avenues to cut expenses. Executives at Alphabet are seemingly more focused to cut down costs of projects and make the company more efficient.