Comment 61 for bug 1970069

I think that's a different bug. I believe it's when plymouthd is starting and is the handover (mode set?) from efifb to DRM. It doesn't happen at all if you add "nomodeset" (please try that).

"Really long time" might be subjective though? How long?

VT switches (or more accurately virtual console switches if fbcon isn't active yet) shouldn't ever be affected by the patch. It only defers the introduction of text to the screen.