I found this website in English with bits and pieces on Hungarian history as well as arms & armour:
https://www.hungarianottomanwars.com/. It has a local flavour with a lot of info not previously known to me. Seems Tokapi Museum is a must if visiting Istanbul. There’s a wealth of fascinating history in Eastern Europe, which was not encouraged during communist times, but now increasingly being re-discovered locally and shared internationally. It’s like missing pieces of puzzle that contribute to seeing the whole picture.