If this reply [0] to a comment of yours is true, then you’re allowed to „temporarily“ leave Germany for 7-12 years before being affected by this.
Sadly, you cannot just leave and think it would be automatically deferred. You must apply for the deferral before you leave and the local tax authorities can ask for a security in cash for the entire amount owed. It is absolutely kafkaesque.
As with many German corporate tax matters, if you think you are affected by this, you should really speak with a tax advisor who has strong experience working with people in your particular situation. You cannot just read the rules and figure it out.