My parents had their account with Deutsche Bank private bankers. They had moved overseas and sold their house in the 90s and were living off the proceeds. Everyone got lucky that they bought their house in a big city in the 1960s. Since they didn't spend too much money, the capital accumulated for a while. It could have gone the way of Detroit but went the other way. When they passed away, we inherited the money and bought a house in the suburbs. It wasn't a huge amount of money, but it changed our lives, no question.
So, when my mom passed, our family had to deal with DB. I have never, ever hand such a bad experience with a bank. The bank overseas was so courteous and efficient that I asked if I could open a bank account with them but I couldn't since I don't live in the country, just a frequent visitor. The IRS and government were easy. The will was as easy as it gets. Do things by the book, you'll be fine.
The NY DB office, to which I would have to go frequently and sit in some luxurious waiting room with nice art, was insane. My lawyer and accountant could not understand how they could repeatedly ask for the same information, deny they had received it, ask for information that literally the US government does not give out to anyone and on and on and on. And no there was nothing shady or shifty about my parents' lives. My lawyer started sending meaner and meaner letters to them, the kind that talk about making my client whole and litigation.
And yet, a few years later it turned out that same bank was often in the news for, among other things catering to Jeffrey Epstein. Who knows, maybe he spent his last hours complaining about them too. I could only hope he had that experience to add to his all-too-brief punishment. Actually, I have often wondered if we got raked over the coals because they had genuinely fishy clients and thus all the clients, especially the ones overseas, were on some kind of government watch list.