Settings are in
~/.vscode-oss
and
~/.config/VSCodium
https://wiki.archlinux.org/title/Wayland
Electron packages read ~/.config/electronXX-flags.conf files, where XX is Electron version, or fallback to shared ~/.config/electron-flags.conf, if the versioned file is not present.
Electron Version is shown in Help --> About
you can try
ELECTRON_OZONE_PLATFORM_HINT="wayland"
in .bashrc