scrollback limit is too short

kgx-0.4.0-1.fc35.x86_64 From repo: copr:copr.fedorainfracloud.org:exalm:kgx

Console scrollback seems to be limited to about 9999 lines? journalctl --since=-1d --no-pager contains 18544 lines, but the top 9356 lines are cutoff. In another example it's 9998 lines cutoff the top.

Reproduces with:

1. journalctl --since=-1d > journaltest.txt
2. cat -n journaltest.txt

A day's worth of journal log is actually kinda short at ~20,000 lines. If I'm doing any sort of boot debugging with systemd.log_level=debug or rd.debug it's around 50,000 to 100,000 lines, and with drm.debug=0x1e typical is 2.5 million lines.