I recently installed manjaro on my laptop and it’s been working great apart from some small hiccups.
One of them is that I need to press the alt gr key to access characters like @ on my keyboard when in windows I can press ctrl + alt to do the same.
I use the finnish no dead keys layout and it works great using alt gr. I also messed with some of the advanced keyboard settings in plasma and was able to get ctrl+alt to work but it broke shortcuts like ctrl+c,v and alt+tab.
I also googled for some help but most results required me to know how to setup keyboard profiles or something using config files and I wasn’t able to figure out what changes I should have done.