If you're on X11, there's xdotool and for Wayland, ydotool.

The potential in xdotool is there, however what I loved about AutoHotKey was the ability to inspect windows and actions to use for scripting purposes. Not sure if there is such a feature I am missing in xdotool or similar.

It's not the same, but kwin's rules and scripting features allow you to inspect windows and automate some of their actions. If you combine them with xdotool/ydotool, you might be able to recreate some of the features you expect.

Sending me towards the right path.

It looks like I could write a little script using some of xdotools built in tools for cursor coordinates, active window info and geometry etc that would be pretty useful. As a quick solution it could alert using notify-send on a key combination, although figuring out how to append the data to the cursor overlay would be even nicer.

There's also wmctrl and xprop.

http://tripie.sweb.cz/utils/wmctrl/

https://www.freedesktop.org/wiki/Software/wmctrl/

https://www.linuxjournal.com/magazine/hack-and-automate-your...

https://www.x.org/releases/X11R7.5/doc/man/man1/xprop.1.html

The 'Tips' section of the first link also has several other utilities that are pertinent: http://tripie.sweb.cz/utils/wmctrl/#tips

Espanso does similar things (cross-platform) https://espanso.org/

Autokey https://github.com/autokey/autokey

I tried it and found that it did not do enough to make it useful for me. Definitely the first thing to look at though.