Has anyone answered this?
1) better asjk on [hidden email] or
2) It looks to me like the gate keeper. We sign the Installer,
but not the Application itself. So we have only half solved the
gatekeeper yet. We are working on an improvement.
Please see the release notes at  how to treat with this.
If you like you can help translating the release notes. We have
no version in your language (you have asked development, lets help
us. ;) ) :)
I can’t install and open OpenOffice in Mac Big Sur 11.1
What can I do?
I send you a picture.