Open links in an existing instance of Vaultwarden

[BlackDex]

See my answer on your almost same question here.

Mobile friendly web UI

The Vaultwarden project does not develop or maintain any client. Vaultwarden is only the server side for Bitwarden clients. The clients do not support fancy protection checks and if they receive invalid responses it will break the clients. Steve matter idd it’s mobile of desktop. There is no way to navigate directly to anything via mobile as far as i know. The web-vault supports some direct navigation but that is it.