Years ago it was relevant (like 15 years ago). I had a BT mouse then, and it was a power hog. So much so it was rechargeable with its own charging dock. And yes, when you walked away for the day you better dock it!
But I’m sure it’s far, far better now. Logitech advertises some of their’s as having 1 year battery like, on a single AA battery
There was a really good explanation by a rando about how it happened. Seems a dev made a mistake when publishing a change.
Apparently bitwarden immediately changed internal procedure for publishing changes.