Starting from SolidWorks 2020 SP3, there is a UI change for the Quick Access Tools.
The default Quick Access Tools are sitting under the Command Manager now (refer to the below image)
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To change this option, please go to “Customize” > “Toolbars” > “Quick Access Tools” then select the option “Show in the Menu Bar”
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Once this is done, the tools will start to show in the original place (refer to the below image)
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I hope you find this useful.