What is your travel date?
Currently, reservations are only possible in Czechia, so from Prague to Domazlice. And only from 30 days in advance. Don't book this via Eurail, that's way too expensive. For 1st class, you can book free of charge on tickets.oebb.at. Add the Interrail/Eurail discount and then choose "One-way tickets”. NOT "Seat reservation only”.
How do I get from Domazlice to Munich or is this where I book on oebb?
How do I get from Domazlice to Munich or is this where I book on oebb?
I'm not sure what you mean. Domazlice to Munich cannot be reserved. But if you have a reservation in the through train, then you can just stay on your seat.
Through train? Do you mean the first train?
Do I even need to book seat reservations?
Sorry for all the questions.