@publicvoit I am using Gnome, and I think Tweaks is the standard way of remapping. But I am not an expert and would love to know there's a more standard way.
@Gray @publicvoit Have you checked your UI for modifying your OS settings? Usually there's a display settings, font settings, etc... UI that also typically includes your keyboard. This UI let's you choose your keyboard type, i..e. 104 Std layout, US/UK/China. There's also special key remapping in all the distributions I've used.
@Howitzer105mm @publicvoit Yep, nothing there for this purpose in Debian as far as I can see
@Gray @Howitzer105mm This is not related to Debian (your distro). It's related to GNOME (your desktop environment).
https://karl-voit.at/Gnome-Setup/ -> search for nocaps and this is the thing you're looking for.
@Gray depends on the Desktop Environment you're using. KDE, GNOME, xfce do have this as standard remapping features. I haven't tried more.