> I got dinged on a performance review for ignoring slack messages sent at 6pm.
Ugh, that's not reasonable on your manager's part.
> I have to refuse meeting requests after 3pm, and if I get pushback, I offer to reschedule for 5am.
That's also not really reasonable on your part. Of course it all depends on dynamics and mutual understanding, but 3pm is certainly well within "core hours" of a normal working day, and 5am certainly isn't.
Ugh, that's not reasonable on your manager's part.
> I have to refuse meeting requests after 3pm, and if I get pushback, I offer to reschedule for 5am.
That's also not really reasonable on your part. Of course it all depends on dynamics and mutual understanding, but 3pm is certainly well within "core hours" of a normal working day, and 5am certainly isn't.