probably, but you might have to change some graphics settings

as described in the comments here

does authentik offer an option to preview a jwt for a given user? might be as simple as that the claim is not named “ocisAdmin” or is not a toplevel entry in the jwt.

not an authentik user, but after skimming their docs i think you have to:

1. create a role “ocisAdmin” via authentiks admin interface
2. give this role to a group in the admin interface or create one.
3. assign a user thats supposed to be an owncloud admin to the group

it might be that you also have to define somekind of mapper to include this in the informations owncloud receives from authentik, but as i said i only skimmed the docs and would personally just try it without the mapper.