Ahh, yeah proton overhead would add up. I wonder if there’s a way to run a single proton instance that launches all of them. When I was running the wow launcher via bottles, I believe it was running both the launcher and the client it spawned using the same resources.
And yeah, I’ve almost never had the minimize on lost focus issue, but I’ve mostly used tiling WMs. The cursor getting locked to the window bounds is way more common.