In Poland we have a local system called Blik, based on codes similar to the 2FA ones. There’s also promising projects like GNU Taler, but I don’t thinks that’s even starting to be used already.

This seems to be the only source for this information, while on the other hand I’m seeing this;

Wired: A Signal Update Fends Off a Phishing Technique Used in Russian Espionage

Google warns that hackers tied to Russia are tricking Ukrainian soldiers with fake QR codes for Signal group invites that let spies steal their messages. Signal has pushed out new safeguards.

Microsoft Sharepoint has a Wiki. The Wiki can not generate a table of content.