[Someone]

Try to get a job that’s less risky w.r.t. impending layoffs, even if it pays less or has fewer career opportunities.

That could even be in a country that has better rules for work visa holders that get unemployed. For example (https://immigration-portal.ec.europa.eu/blue-card/essential-...) “If you become unemployed, you have three months to find a new job. If you are still unemployed after three months, your EU Blue Card may be withdrawn”. That’s far from ideal, but better than “immediately”.

Also, save as much money as you can. Having to return home while having savings may be a bit easier.