The built-in screen zoom is pretty neat. Hold `Ctrl` and use the vertical scroller on whatever pointing device you have to zoom in and out. Real nice when you want to take a (much) closer look at a thing without affecting layout: it zooms your viewport without affecting any of the actual content, unlike, say, increasing font size.

Looks like it’s been updated, I don’t remember the different zoom type options. Maybe I just never discovered them.

https://support.apple.com/en-us/HT210978