that is 1 billion dollars profits at the present Bitcoin price.
That's only on the paper. As people said, unrealized profit.
1 BTC = 1 BTC. As long as they don't sell, there's no actual profit to talk about.
Nice bullish (for newbies) news though

If Elon decides to drop his bags today, the market will suffer a massive tragedy, perhaps even greater than the last Covid 19 dump.
The future of bitcoin is something to keep an eye on, especially now that Elon Musk leads the pack of billionaire wolves.