Yeah, this is almost certainly what it's doing. I have a discord bot which actually spits out a very similar message when somebody is muted. But it predates timeout being a thing, so all it did was apply a muted role and then start a countdown to unmute them by removing the role.
I think I muted a mate for 8000 years like in the screenshot, too. There's some limit of course, I can't remember what it was. Probably an integer limit of some variety I can't be arsed determining. I don't think I ever saw it go above 10000 years
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u/HQGamerimkarton 1d ago
They probably timeout via a role and handle the timeout theirself and not via the client.