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When experiencing slow Wi-Fi speeds, try forgetting the network in your settings and reconnecting with the password, as this can clear corrupted connection profiles that sometimes hinder performance.
Look what I found:

troubleshooting AMD Radeon graphics issues in macOS Sequoia

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While both methods hide files, using Terminal commands offers more permanence than simply prefixing a filename with a dot in Finder. Choose the method that matches your intended access level.