Hi, I stated to use Krita like 2 or 3 years ago and I loved this tool A LOT. On my desktop I have Krita 3, and on my laptop I decided to istall Krita to draw too. So I downloaded the last version (Krita 5).

The problem is that there's a feature on this new version that is not comfortable for me. On Krita 3, when I rotate the canvas with Shift+Space, I can rotate it to 3,67 degrees. Then, if I press Shift+Alt+Space, I cat rotate it to 30, 15 or 0 degrees.
But in Krita 5, if I rotate it to 3,67 degrees, pressing alt It rotates to 33,67 or 18,67 instead of 30 or 15.

Is there a way to change it like the old version? I searched on configuration and I can't find that.

I think you're using krita 4.2.5 (not krita 5).
As a workaround, if you press the '5' key, that resets canvas rotation to zero.