Double taxation treaties are very common. What I’ve been told by US coworkers makes the US stand out is that you still need to file your taxes with the IRS, even when living abroad. No idea if that’s actually the case.
I have lived outside my native country for a while and only had to file taxes in my country of residence (neither of which is the US), because there’s a DTAA in place between the two.
My Vaultwarden is behind a private VPN, but I’ll still update today. Thanks.