Fellowships for Ukrainian researchers: https://stipendien.oeaw.ac.at/stipendien/jesh-ukraine
The University of Vienna is part of the network "Scholars at Risk": https://www.scholarsatrisk.org/
A working group at the Department of Philosophy has put together an info sheet on supporting measures at the Department for students and researcher from the Ukraine.
Further initiatives: https://ukraine.univie.ac.at/en/
Psychological counselling service for Ukrainian students: https://www.youtube.com/watch?v=CUQeddZfw7s