As a foreigner, it may make sense to short the Egyptian pound versus a stronger currency like the USD and potentially get rich in the same way George Soros when he bet against the British pound in 1992 which was propped up by the Bank of England then.
Usually when there’s a currency arbitrage opportunity, locals will circularly exploit the currency arbitrage (potentially by exchanging pounds with an Egyptian bank for 10% more USD or perhaps another way) until the government spends more of it’s foreign reserves than it feels comfortable spending and simply can’t hold down the peg any longer.