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The memory in the 2019 MBP (two Thunderbolt 3 ports) is soldered to the motherboard, and is not user-upgradeable.


I'm a big believer in having more RAM generally, but of course in many situations having more RAM isn't warranted. In your case, however, having more RAM is going to be useful because of the type of tasks you're using your iMac for. The key spec missing from your question, however, is the type of storage you have. If your iMac has one of the Fusion drives, ...


I note that Books is using a similarly small amount of memory on my Mac, too, despite not being launched. So, I'd categorise this as 'normal'. My general approach to memory issues is "Is this an actual problem?" If memory pressure is low; and you're not seeing high levels of swap and associated performance issues: then I'd be tempted to let MacOS do the ...

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