I successfully installed Hearthstone using Lutris without any issues. However, Hearthstone Deck Tracker is really a necessity. I installed Hearthstone via (+ / Install a Windows game from an executable) method in Lutris. Similarly, when I try to install HDT, I encounter the error in the screenshot. I also get the same error when I attempt to install HDT independently from Lutris using wine (after installing .NET framework with winetricks).
EDIT: This was my way to go, as of now i can’t get it to work any more on my steamdeck.
So i’ll share my workaround. to use it with the above mentioned “Hearthstone Deck Tracker”
1.in Steam/Lutris ; install hearthstone at least once and set it to windowed mode.
2. Grab the latest ZIP from here Releases · HearthSim/Hearthstone-Deck-Tracker · GitHub (not the exe)
3. Extract the contents of the folder into your battle net programm folder (it’s a mess, but it works so that both exes are in the same folder "battle net launcher.exe & hearthstone deck tracker .exe)
4. Select the Arena Tracker exe as the main executable, replacing battle net launcher
5. After you launch Arena Tracker select “Run Hearthstone” from within Arena Tracker
6. enjoy