Update FATCA customer and investment

Hello, I reported here 10 months ago (https://www.reddit.com/r/Finanzen/s/STdgasJBo3). US citizenship is finally history (6 month wait). It cost just under $8,000 (€2.5k for retroactive tax returns, Americans Overseas Fees of $2k and $2.5k for the US consultation (with processing fee)) and in the end it didn't do anything. Sure, we save ourselves the $500/year US tax return, but we still can't invest... And therefore no D