Oh man where do I begin?

So I can't confidently say I've tried it all but when I booted up Ubuntu within the last year it was hard to find...

    - simple email client with good html template support and conversation threading (thunderbird was meh)
    - simple pdf viewer
    - pdf editor
    - an oscilliscope app that works with those usb oscilliscopes
    - image editor (gimp is a slow nightmare to use)
    - Microsoft Office suite replacement (Open/Libre Office is also a UI nightmare)
    - A diagram app ala draw.io (Admittedly I haven't looked too hard for this one)
    - Music library organizer (Also didn't look too hard)

I guess now would also be a good time to mention apps that are great

    - Desktops shells (Gnome/KDE/Xfce)
    - VLC 
    - Firefox/Chrome
    - Package managers
    - Music players (generally bearable)