I don't work a normal 9-5 job. I work shifts and only work three days a week due to my shifts. However, my company is made up of shift workers and 9-5 workers. If I send an email I don't expect a reply for a few days minimum as I might be sending it at 2am on a Saturday night. I don't check my emails when I'm home on non-working days. I received an email which has had me questioning this and I now wonder if people who do have equipment to WFH check their emails when they are on their days off?