[2] seems like a grift, not a bribe.
[3] is an unnecessarily verbose story with practically no substance. In 2017 a $10m cash withdrawal was made to a Research and Studies Center said to have a “relationship with the Egyptian General Intelligence Agency.”
Using those facts, and the fact Trump was friendly with Sisi at a UN event, an entire investigation was launched to see if Trump was the final recipient.
If you look at it with the counter assumption of Trump being innocent, there still seems to be a reasonable motive for all this.
The FBI wanted information about an Egyptian cash withdrawal from one of Egypt’s own banks, subpoenaed them by bringing up presidential relevancy, and punished them $50k a day until the bank sent the documents.