Change Japanese(Anthy) Font in Gnome3

I’m trying to find a way to change the font used in Gnome3 when using the Japanese(Anthy) input method. I added Japanese(Anthy) as an Input Source under Settings → Keyboard.

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I ran ibus-setup and selected a custom font, but when I switch to Japanese (Anthy) it still used the default font.

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  • ibus version 1.5.25
  • gnome 40.4.0
  • ibus-anthy 1.5.13

ibus-mozc with GNOME seems to work smoothly. The only strange thing that without selecting XFCE during a fresh installation the make process fails.
yay -S ibus-mozc
and accepted defaults
(It took me cca 15 min. to install on Lenovo IdeaPad S145-15IIL )
DE: GNOME 40.5
/ibus-mozc 2.23.2815.102-3 (+64 1.59)