I might be crazy but for a brief moment, I've seen a different username instead of mine. How does lemmy authentification works ?

It was on my work PC behind a company Proxy/VPN so it might play a role in authentification management. (But it sounds pretty crazy/unsafe to have a proxy doing so)

But it could also be just a page loading issue where some poster username was display at the wrong place while the page was loading, I haven't checked the CSS/HTML