Are you having issues with Bitwarden’s requirement to “pop out” the browser extension when doing 2FA using Duo (this thread), or did you mean to follow up on the main thread about Bitwarden’s support for the Duo Universal Prompt?
The Universal Prompt is supposed to be supported as of version 2024.2.3. Do the instructions here not work for you? The Help docs mention a roll-out date of March 30, 2024, but it’s not clear to me whether this is the date that the Bitwarden will begin supporting the Universal Prompt, or (more likely) the date that Duo will end support for the legacy prompt. My understanding was that Bitwarden already supports the Universal Prompt (after you configure everything as instructed in the Help docs).