Problems should be solved if I use VirtualBox, I think; but I probably won't have that much access to WSL.

• Win10 multilingual input method doesn't leak to WSL2 X410
• Win10 multilingual input method isn't very customizable, compared to fcitx or IBus
• I use xfce4 Ubuntu in WSL2, and I tried both X410 (similar to VcXsrv) and xrdp (i.e. Remote Desktop Protocol).

Why am I having Afrikaans here, and I cannot remove it?

I can add Japanese and Chinese language support; but I cannot remove Input method, while retaining language support...

Windows 7 might be decent, but Windows 10 sucks for multilingual input. MacOS can indeed install VM, but does not have the performance of WSL2.

I am tempted to use purely Linux, but cannot run Windows/macOS-only apps that are not ported to Linux; in particular LINE, which does not work in WINE.