What macOS Big Sur utility warns of dangerously low free space?

[HandyMac]

My MacBook Pro (macOS 11 Big Sur) warned me of low free space on its SSD, with the window below. I made a screen shot of it, and closed it. Then freed some space, so it hasn't appeared again. But now I'm wondering: What utility or System function created this warning? I'd like to get this window again, to check out the various items in it. TIA.

 

[HandyMac]

In case anyone here has this question, someone at Apple Community offered the answer:

This whole area shifted in macOS 13, IIRC.

Here is the macOS 11 display you are asking about: Optimize storage space on your Mac - Apple Support

The path: Apple menu  > About This Mac > Storage > Manage

Maybe helpful video: https://cdsassets.apple.com/vid/live/hls/7WUAS350/videos/1e04fbb0_1736811516.m3u8