Following that discovery, I've search for odd (invalid?) DNS names.
Here is the list of certificated I've found, it may overlap some discovery already reported. If I'm correct, theses certificate are not revoked, not expired, and probably trusted by Mozilla (crt.sh issuer are marked trusted by Mozilla, but not all).

Starting with *:
https://crt.sh/?id=7211484      *eis.aetc.af.mil
https://crt.sh/?id=10714112     *g10.net-lab.net
https://crt.sh/?id=48682944     *nuvolaitaliana.it
https://crt.sh/?id=15736178     *assets.blog.cn.net.ru
https://crt.sh/?id=17295812     *dev02.calendar42.com
https://crt.sh/?id=15881220     *dev.1septem.ru
https://crt.sh/?id=15655700     *assets.blog.cn.net.ru
https://crt.sh/?id=17792808     *quickbuild.raptorengineering.io

Starting with -:
https://crt.sh/?id=54285413     -d1-datacentre-12g-console-2.its.deakin.edu.au
https://crt.sh/?id=78248795     -1ccenter.777chao.com

Multiple *.:
https://crt.sh/?id=13299376     *.*.victoria.ac.nz
https://crt.sh/?id=44997156     *.*.rnd.unicredit.it
https://crt.sh/?id=5982951      *.*.int.swisscom.ch

Internals TLD:
https://crt.sh/?id=33626750     a1.verizon.test
https://crt.sh/?id=33123653     DAC38997VPN2001A.trmk.corp
https://crt.sh/?id=42475510     naccez.us.areva.corp
https://crt.sh/?id=10621703     collaboration.intra.airbusds.corp
https://crt.sh/?id=48726306     zdeasaotn01.dsmain.ds.corp

Are CAs allowed to deliver such certificates?

(Methodology: https://blog.tdelmas.ovh/crt-sh/ with the links for expired/revoked certificates)
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