As you are from Austria, you can get a free UAE visa on arrival
, which in an odd twist, makes it more difficult for you to determine if there is an entry ban. Otherwise you could just try applying for a Dubai tourist visa
or Dubai visit visa
and it would probably be rejected if there was ban, so you'd find out before travelling.
A more complicated way is to try to find a job. A company should then apply for an employment entry permit, which should be rejected if there was ban in place.
You could take the risk and fly to the UAE. If there is an entry ban because of visa and work permit related issues in Qatar, it's unlikely you would be detained, just sent back.
But yes, it's difficult to find out for sure one way or another. There are a couple of other topics in the forum with similar questions (also to do with Qatar I think). Have a look at those to see if you get any better idea.
I thought there was a Gulf News "Ask The Law" question similar to yours recently but I can't find anything now, except for this one from over a year ago (01 February 2008):
If an employee has been deemed an absconder, is the lifetime ban in effect to the whole of UAE or all the GCC countries?
The lifetime ban which may be imposed on the employee, is applied only in UAE, and is not applied in all GCC countries.