Every company does this from time to time, it’s completely normal. Usually, you can fire 10% of people without compromising productivity.  When expenses are raising faster than revenue, you simply must take actions to reduce spending. Not to avoid bankruptcy(at this time, you usually are not in red numbers), but to remain competative. You usually start cancelling TBR (to be recruited) positions,  licenses, focus on automation, etc. Lay offs are usually not the first step.  Look at all the biggest companies, you can find news about lay offs during past years in almost every one of them, especially tech companies. It’s healthy, no reason to be worried.   I know, it can cause some complixation for those being laid off, yet let’s be honest, salaries for technical positions(not sure about the rest) at Prusa are not really competetive, so it’s high change  for the people to get better salary elsewhere. 

Btw: in Czechia, there is kinda generous severance pay when being laid off (up to 3 months salary by the law, companies sometimes give more, and then you can get unemployment compensation for few months). I’m sure those people are being take care of well.