Will corporate advertisement cancellations and user defections starve the Twitter bird?

I am afraid it could get very serious for Elon Musk and Twitter! Or a new competitor may now be created.

I thought Musk seriously overpaid for Twitter! However, the stock price for Twitter apparently recovered in October to or above the levels when the purchase was announced (roughly $50 per share).

And how profitable was Twitter before the takeover by Musk?