Fcitx5 keyboard not working

Hello there! I’m trying to set up fcitx virtual keyboard on my x86 tablet running EndeavourOS (KDE Wayland). I installed extra/fcitx5, extra/fcitx5-qt and extra/fcitx5-gtk. I followed the instructions here, and set

export XMODIFIERS="@im=fcitx"

in both my .bashrc and .zshrc, just to be sure (zsh is the default shell)
I then set in the system settings Fcitx5 as virtual keyboard, and rebooted. When I now try to tap on any textbox (in tablet mode, no mouse nor keyboard attached) the keyboard does not pop up at all, no signs of life. in the system settings there’s also “fcitx5 wayland launcher experimental”, I tried to do the same selecting it instead of “fcitx5” but nothing changed. Maliit instead works correctly (if I select it in the system settings).
Any idea what am I doing wrong?