idk if im missing something, but iv loaded mc with the mod once, and now all the instances of prism launcher use borderless mode, even without having ever installed the mod on that instance, if i use the vanilla launcher instead it uses normal window mode
the first time i used the mod was on a 1.18.2 instance

I don't know then, I don't think this is something caused by Borderless Mining. If you're using a laptop with a dedicated GPU, the difference might be that Prism isn't using your dedicated GPU - you can configure which GPU is used by the javaw.exe Prism uses in the Windows graphics settings.

I don't know then, I don't think this is something caused by Borderless Mining. If you're using a laptop with a dedicated GPU, the difference might be that Prism isn't using your dedicated GPU - you can configure which GPU is used by the javaw.exe Prism uses in the Windows graphics settings.

i have a laptop with only the integrated gpu, so idrk

Do you use a mod that preserves the window position? What operating system do you use?

mmm dont think any of the mods i have do that thing, and it also happens with totally vanilla instances, i use windows 11 22h2