You seem to be really misinformed about the legal definitions of these tertiary education institutes in Austria.
Universities of applied sciences are governed under the "Fachhochschulgesetz"[1] (Universities of Applied Sciences Law) while universities are governed under the "Universitätsgesetz"[2] (Universities Law). This carries loads of differences with it, i.e. when it comes to academic freedom and right to promotion. Professors at universities of applied sciences are much more limited in their academic freedom and these institutions do not possess the right to promotion at all.
Not sure where you got your information as it's wildly untrue in some respects.
You responded to a comment talking about "Germany's and Austria's Universities of Applied Science" - which countries did you mean if not Germany and Austria?
Universities of applied sciences are governed under the "Fachhochschulgesetz"[1] (Universities of Applied Sciences Law) while universities are governed under the "Universitätsgesetz"[2] (Universities Law). This carries loads of differences with it, i.e. when it comes to academic freedom and right to promotion. Professors at universities of applied sciences are much more limited in their academic freedom and these institutions do not possess the right to promotion at all.
Not sure where you got your information as it's wildly untrue in some respects.
[1] https://ris.bka.gv.at/GeltendeFassung.wxe?Abfrage=Bundesnorm...
[2] https://ris.bka.gv.at/GeltendeFassung.wxe?Abfrage=Bundesnorm...