For me it is a convenience thing – I spend a lot of time working from home and sometimes it’s nice to just be able to grab my phone and join a meeting while I’m sitting on the couch or w/e without needing to go over to my home office room. My team almost never does anything outside of work hours, so it’s not like I’m getting pinged or anything. In the rare situation where I get some notifications from a chat channel outside of working hours (usually someone in a different time zone) then I can just turn off work apps in Android and it goes away.