With xorg-x11-server-Xwayland-23.0.99.901-1.fc39 input switching (between "en" and "bg", mapped to CapsLock) no longer works here in google-chrome and other chrome X clients like com.slack.Slack. The switch on the shell level and in wayland clients works as expected.
*** This bug has been marked as a duplicate of bug 2173201 ***