Problem acessing my self-hosted bitwarden with desktop App and Browser extension: Auth-Email header invalid

2025.2.0 definitely is not the latest server version. I think you should have a look into that next: Self-Hosting Update: Migration to GitHub Container Registry (and update your server – BTW, also because of this: Software release policy — update your Bitwarden clients and server)

(The current server version should be 2025.11.x)

They might just not have gotten the updated (latest) client versions yet.