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@avibryant Understood. I'm coming from running -primarily- Linux on the desktop for the last 3-4 years. While my Thinkpad is in the shop, I'm running Catalina on a 2011 MBA. I'm blown away by how fast and responsive it feels, coming from a top-specced Thinkpad X1 running Fedora.
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@avibryant I -believe- this is the big hammer you're looking for: support.studionetworksolutions.com/hc/en-us/articles/115003839246-How-to-disable-Systems-Integrity-Protection-SIP-in-macOS