Does anonymity work if you use two different aliases on the same device?

Like, if you have your personal account with your real name and persona but also have other accounts with a different online persona and use both of them regularly on the same device. You never reveal your real identity when you use your 2nd persona and don’t have them both connected on the same app, so that it can be linked to each other, like one you use it on the app and the other one in the browser.

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