Welcome to the community family! QB Assistant is a built-in feature in QuickBooks Self-Employed that gives you quick answers to your question. You can learn more about that here: Contact QuickBooks Self-Employed Support
Depending on how you access your account, you may have different ways of accessing the search feature. If you've changed to iOS to access your account, that could explain why you now see QB assistant. For any further assistance, feel free to reach out to our tech support team.
I hope this helps! Have a great day.
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