QFQ

$GLOBALS["TSFE"]->fe_user->user["oidc"] 
$GLOBALS["BE_USER"]->user["oidc"] 

and has the following fields:

uid - the uid of the oidc user record, stored in tx_oidcclient_feuser or tx_oidcclient_beuser
provider - name of the provider configured in backend
provider_id - the uid of the provider
resource_id - the OIDC identifier for the resource (usually the sub claim)
resource - ...

EDU-ID / UZH
sub
email - current email address registered with Switch-Edu
name, given_name, family_name

EDU-ID:
email_verified - boolean  true|false

----
oidc_fe_sub, fe_oidc_email, oidc_fe_email_verified

oidc_fe_sub