(arguably terrible) operating system
macOS has made some arguably poor design choices, but it makes it hard to take someone seriously when they state the whole OS is terrible.
It could be just me, but every time I tried to do something I sat thinking that I am not the target audience for this thing. I don't like the UI, I hate not being able to talk to the hardware the way I can on linux (uart took me way too long to get working), I am angry that I am not able to run kvm, I hate not being able to replace the desktop and fix bugs myself. That's what makes it terrible for me.
There's a reason macOS is the least-used OS behind Linux and Windows. If it was any less terrible, we would know.
It's the worst OS we have.. except for all the others.