Shortcut: Ctrl+Shift+/ writes an interrobang character. Toolbar button displays window of characters to choose.
It's 2021 and it doesn't work. But one of the reviewers wrote one that I could copy & paste, so I'll use it.
I love this extension! I use it a lot in filenames—where question marks are disallowed, in Windows.
A very underrated and excellent extension; it is much easier to access the interrobang—and other characters—this way.
https://socialcoder.org
SocialMediaExtensions
nonlogicaldev
alec.posney
Jarques
https://sites.google.com/site/bulkeditopportunities
CCninja86
Glen Chiacchieri
Tabgraf
https://blog.tomayac.com
STRML
Peter Bell