Just tried 10.15.6 and am getting same need to verify every app on first
launch tried the sudo xattr -dr com.apple.quarantine and it makes no
difference. Has something changed from previous versions off catalina.
Have tried SSO see screenshot, still can't get it to auto load and fill
in their AD credentials automatically. Have tried adding the
etc/krb5.conf and no joy. Wondered what other people have done on here
to get it to work.