It's Mac-only. That's a pretty serious limitation for a modern Git tool.

Isn’t this just something that any IDE has built-in these days? Maybe I’m missing something, but how is this fundamentally different from the built-in git timeline view from something like VSCode or Jetbrains?

I upvoted you because you were unfairly downvoted. I don't even use a Mac any more after 20 years of exclusively using them but it's actually hilarious how bad magit is compared to this. It's all well and good making the most of limitations that are self imposed but people need to remember to look outside their own bubble.