The game just moves elsewhere. There is always some new hotness with increasingly obscene forward growth expectations. Sell MSFT, buy SNOW. Sell SNOW, buy MDB. Sell MDB, buy PTON. Sell PTON, buy NET etc.
What's fascinating is that people knew that Facebook's business model was based entirely on targeted advertising and yet they did not see this development. What did people think was going to happen when Apple decided to enforce more stringent privacy requirements on data sharing?
Facebook has been a zombie for a while now. Maybe the market has caught up. Their stock price didn't make any sense to me when it was high and it still doesn't make sense to me. With stalling growth and lower overall engagement they don't really have anywhere to go so my guess is their stock price is going to continue falling.