Using Chrome as browser the tabname is always set to the displayed board. However when I configure a recipe sentence where the user selects a board in the configuration, the tabname changes to the selected board.
Wow, what a good catch! It never crossed my mind to even look for something like this, you have a keen eye.
I just tested this further with our native integrations and automations, and I was surprised to find the same behavior occurs there. I’ll log that to our development team as something that should be adjusted platform-wide. I really appreciate you flagging this for us!