If your Mac's built-in microphone cannot be used after plugging in the Minisopuru Hub/Dock, it may be because the audio input source is set to Hub/Dock in the system settings.
Please try the following solutions:
1. Click the Apple icon in the upper left corner of the screen and click System Settings.
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2. Click Sound, click Input.
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3. Check to see if the audio output settings are set to the Mac itself. If not, change this setting to Built-in and your Mac's built-in microphone will be able to be used normally.
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If your Mac’s built-in microphone is not available when using Microsoft Teams, please refer to this link
Please try the following solutions:
1. Click the Apple icon in the upper left corner of the screen and click System Settings.
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2. Click Sound, click Input.
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3. Check to see if the audio output settings are set to the Mac itself. If not, change this setting to Built-in and your Mac's built-in microphone will be able to be used normally.

If your Mac’s built-in microphone is not available when using Microsoft Teams, please refer to this link