@okiaconvit Sorry I'm absolutely no expert on this. I prefer these kinds of things from European banks because I think IF there are regulations, the European products rather have them than not.
That's not to say the US banks don't have regulations or even EU regulations when selling to EU customers but as they are all low-fee, going with a European option feels safer to do with a European vendor.
Regarding security, I read somewhere that they need to be covered by at least 90%, but idk if that holds true.
Generally I advise against supporting BlackRock, they shape companies to their liking and that's not always in the interest of the person who wants to see economic growth. Check "BlackRock ESG criticism" on google