Self-censorship, preference and knowledge falsification come to mind. People behave differently when there is no expectation of privacy, when they know they're observed. Apart from employment consequences, social alienation and mental health impact, panopticism may negatively affect creativity and innovation, when people behave less impulsive and more agreeable.
In my practical experience, (local) transcription also tends to be anything, but instant, if you don't allocate significant compute to the task. So your summary may not be available for some time after the call ended. You may need to cognitively backtrack quite a bit to confirm plausibility/"correctness" of the AI production.
Management will love it, everyone else will grow to hate it.
For me, at least, private personal talks/calls are the last bastion of interpersonal bonding and social relief in the modern (remote) work environment.