On MacOS there’s a native shortcut for pasting as plain text:

Option+Shift+Command+V to paste text without any formatting.

https://superuser.com/a/512502

This is the same on Windows and Linux afaik you have Ctrl + Shift + V. Still makes me angry because it's a stupid default.

It's not universal on Windows: for example it doesn't work in MS Word. The place I'd want it the most! Ctrl+Shift+V does nothing at all there. It's Alt-HVT for this in Word (duh). But you can set the default to be no-formatting.

The following is almost a reflex for me: Win+R -> notepad -> Ctrl+v -> Ctrl+a -> Ctrl+c

In most Office apps you can make this Alt + 1 by setting "Paste As Plain Text" as position 1 in the Quick Access Toolbar (the small list of icons in the top left of the app). But yes, would love for this to be a universal Windows command.

It works in LibreOffice but it pops up a window asking you which sort of paste you want, which wastes more time.

This is why most of my copy-paste is actually: copy-paste_in_SublimeText-copy-paste.