I don’t really mind. 90hz is my sweet spot. It feels smooth enough and I’m not unnecessarily taxing my hardware for comparatively little improvements.
The only valid complaint I see is that 120hz is a little more versatile because it divisible by 24 and 30, while 90hz is only divisible by 30. So not as good for content that runs at 24fps. But even then, I still don’t mind, I don’t notice any presentation issues.
Brew applications are also unsandboxed unless the app developer chose to opt-into sandboxing.
Personally, I while I love sandboxing, I chose to use brew and other third-party installation methods because I didn’t want to use the App Store (and actually couldn’t unless I signed in using an Apple account, which I didn’t want to do).
If you use apps from the App Store, they will be sandboxed.
If you download apps elsewhere, they may or may not be sandboxed. It’s an opt-in thing.
Whether you choose to have guaranteed Sandboxing from the App Store but at the cost of Apple’s increased meddling is up to you.
More frames = more GPU usage = more power usage = more noise (if you have a fan).
I’m just saying that 90hz is a sweet spot for me. Sure, I can feel that higher refresh rates are smoother, but 90hz is simply enough for me.