Comment 6 for bug 1798481

I grepped for 463 against everything in my home directory and this was at the top of the list:
.config/xfce4/xfconf/xfce-perchannel-xml/xsettings.xml:
    <property name="CursorBlinkTime" type="int" value="463"/>

(Apparently I'm also not very familiar with the xfce ecosystem.)

It seems there is some mechanism by which changes to properties in dconf propagate to xfconf, but this mechanism seems to be less than 100% robust.

I quickly found "Settings Editor" (the GUI for xfconf). Within the xsettings "channel" there exist the following properties:

/Net/CursorBlink
/Net/CursorBlinkTime

Changes to CursorBlinkTime were effective immediately in GTK interfaces upon saving the value in xfconf ("Settings Editor").

There's no /Net/CursorBlinkTimeout. I tried creating an integer property by that name and setting a value of 20, but it did not have an effect.

There exist several /Gtk/... properties in the xsettings channel, including /Gtk/CursorThemeName
and /Gtk/CursorThemeSize. Nothing about blinking.

As a shot in the dark, I tried creating /Gtk/CursorBlinkTimeout as an integer property with value 20 and it was effective immediately, with the new value being reflected in the vte debug output the instant it's changed in xfconf.

I suppose the bug should be a request for enhancement to include in the xfce Keyboard settings GUI an affordance for setting the value of /Gtk/CursorBlinkTimeout, so that this setting is discoverable. (The Keyboard settings dialog has "Show blinking" checkbox and "Blink delay" slider which set the values of /Net/CursorBlink and /Net/CursorBlinkTime respectively.)

Thanks for the guidance.