That would be the easiest path, but would cost you!
You can try to install the battle.net version via Lutris: https://lutris.net/games/diablo-iv/ and it should work. I haven’t tried this game in particular, but had a great experience with Lutris in the past.
It is a great front end for Wine/proton and a database of install scripts and configurations for many games.
Bit off-topic, but if you would want to also play games from the Epic store or GOG, be sure to try Heroic Launcher.
That would be the easiest path, but would cost you!
You can try to install the battle.net version via Lutris: https://lutris.net/games/diablo-iv/ and it should work. I haven’t tried this game in particular, but had a great experience with Lutris in the past.
It is a great front end for Wine/proton and a database of install scripts and configurations for many games.
Bit off-topic, but if you would want to also play games from the Epic store or GOG, be sure to try Heroic Launcher.