YES!!! And it's maddening.
I also use 1 click to end a call but my Airpods 3 (A2564) keep switching to 1 click for Mute & Unmute, and 2 clicks to end a call.
This has only been happening since the last firmware update, 6A300, for me. I don't think there was a Mute & Unmute option before.
It doesn't happen every time I connect my Airpods, but it happens a couple of time a day.
When it does happen there's usually a popup window telling me about the new feature (Mute & Unmute) with a link to the settings.
It's like Apple reeeeealy wants you to use this new feature and the default setting is 1 click.
PLEASE FIX THIS, APPLE.