hard is this: https://faultlore.com/blah/text-hates-you/

and this: https://lord.io/text-editing-hates-you-too/

those are both things most ImGUIs ignore. And, even if you pick some library that somehow handles the first you're left with all of the issue mentioned above.

To be clear, if I was writing a devtool (and I am actually) i'd reach for an ImGUI (and I did). But I'd be unlikely to use one for user facing tool.