Snow in March

Depends how good you eyes are. :) I'm quite confident you will see snow-covered peaks in that area, although maybe in the distance. If you want to see snow close-up...that might require either good luck (depends on what kind of a winter they are having) or getting a bit up higher (or both). In early March, I think snow won't be hard to find.

Early March is still winter. You will have no problem seeing snow.

The weather can be erratic in times of global warming.

Here is snow for sure all the year:
https://www.kitzsteinhorn.at/en
https://www.hintertuxergletscher.at/en/home/