We're a lovey-dovey-friendly-fluffy company and everyone is generally camera on by default. There's no rule that it has to be, just generally people actually like seeing each other. We actually have a purely social 20 mins at 11am and 3pm where people go on just for coffee and chat
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I found it awkward at first but you get used to it
. We've been a heavily-online mixed office/remote company since ye olde Covid.
I'll take calls looking like I've clearly just rolled out of bed these days. No one is bovvered. But again, it's a very small (about 20 people) and close-knit company where everyone knows each other well, I probably wouldn't like it if it was "official calls" in a larger company.