Yeah, the plymouth splash seems to be the culprit.
Deleting splash by pressing E to edit at the limine boot let me boot with 6.19. Then editing the limine.conf using the instructions from here [Tutorial] Disable or Remove Plymouth (boot splash) ,
(I used the 2nd method)
Edit
/etc/default/limineand place options on theKERNEL_CMDLINE[default]+=line, creating it if necessary.
Afterwards to update limine:
sudo limine-update
returned my troublesome system to normal boot.