It’s binary and there’s little room for nuance. Once we’re back in the workplace we’re expected to perform, snapping back almost overnight from one state to another. The pressures on any business mean that no matter how kind others wish to be, it’s a burden on them when we aren’t up to the normal pressure, and want more time, or later deadlines, or shorter hours.
The term we’re missing that makes sense of all this is convalescence. It’s a concept that’s largely fallen out of use, so most of us neither consider it nor take it seriously, and yet for many conditions this slow restoration is a vital part of recovery.