In Lutris it'll try to run on Wine 8 by default, I had to set it to use the latest Proton GE. Was also able to get WoW, Diablo 4, WC3 and SC1 running well this

In Lutris it'll try to run on Wine 8 by default, I had to set it to use the latest Proton GE. Was also able to get WoW, Diablo 4, WC3 and SC1 running well this way, since they're all in a single Wine Battle.net install.