It is impossible IME to use Inkscape unless you run through all the tutorials. The interface is not usefully discoverable. You have to understand the app's model of things, and that's opaque at best. I think it's worth learning though.
[1]https://commons.m.wikimedia.org/wiki/Category:Images_that_sh...
You definitely have to understand the app's model of things; this applies to every app, including things like notepad.exe. Users just happen have some prior exposure to certain models.
Clicking on toolbar buttons and reading the menu items, plus a little experimentation, also helps.