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 ema

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)