Yes I can confirm, the left edge is aliased whatever the algorithm used.
I didn’t tried all possible angle but for the one I’ve tested, the aliasing is here.
And I can reproduce this from Krita 4.4 to 5.3
This is not normal a normal thing, there’s not reason to have the left edge aliased…
But
I found “something”
The QR code is on left border position:
Aliased:
The QR code is not on left border:
Apply the transform mask:
The left border is properly aliased
And then few millisecond later, it’s aliased…
(note: if QR code is on the left border, it’s immediately aliased, like if border of QR code was cropped… I think there’s a bug already opened for that, I’m searching)
Grum999