Work email will be very different from job to job as well. Many orgs have basically declared bankruptcy on email and moved peofessional communication to other channels.

For the last decade my work email has been basically notifications, with sometimes a single or two emails thoughtfully written by a human. And that's probably because anything people expect me to read will be either in Slack/whatever chat app, in a ticket/task, or straight in a calendar invite with an agenda to get up to speed.

Funny thing is emails are now either only relevant for a few miliseconds where I only need to know what triggered it, or ultra important "we'll delete your account in 5 days" type that I absolutely don't want to miss. In a year I haven't got anything in between.