In part, the complexity of finding all this information reflects the jurisdiction of European countries and Austrian States. I will focus today on western Austria, which includes the Tirol and Voralberg.
Multilingual avalanche forecasts and information for the Tirol, Südtirol, and Trentino are available at https://avalanche.report.
Those sites are very useful, but other sites provide access to more data or analyses in alternative formats. ZAMG provides analyses from their INCA model at https://www.zamg.ac.at/incaanalyse/. This allows one to get a broader perspective on the Austrian Alps and, at least this winter, the remarkable snowpack that exists throughout the northern Alps.
Another option is https://www.lawis.at/station/. Below is the seasons observations from the same site presented above. They provide a very nice interface with detailed topographic maps. The site is the red dot in the image below, so you can get some perspective on the characteristics of the site.
One thing that I've found challenging is that the border between Tirol and Voralberg lies in Arlberg pass and the Arlberg region, which I like to look at because it is one of the snowiest regions in Austria. As a result, I find myself switching from site to site quite a bit.
By and large, there is a remarkable amount of data to play with, which is really great given the incredible spatial variability in weather and snow that exists in the Alps.