[josteink]

I’ve used separate EFI system partitions for Windows and Linux, since as you point out, Windows may not be a entirely good citizen all the time here.

At first I tried to force all OSes to use the same EFI partition (because why should they need different ones?), and yes, I now recall having some issues back then.

After that I tried to let Windows have it’s own EFI partition. That was also the default setup created when installing Windows last, so it really didn’t take any effort.

And that has worked flawlessly for me. You may want to give it a shot.

Cheers.