diagonal lines appear less clean in alpha version

Compared to the latest release version (2.2.1.5), the alpha version (2.2.2.5) shows diagonals less smoothly.
This seems unrelated to whether Draft Mode is applied, and disabling antialiasing in the alpha version makes the diagonals look even less refined.
I’m wondering whether this behavior is always the case in the alpha version, unlike in the release version.

yes, this is known issue that is specific for Qt6 used by alpha version.
It will be fixed in one of nearest updates (actually, the fix already should be in master branch yet I'm not sure whether it's included into public build).