Effect shape distortion when touching the canvas edge

I need to apply a glow effect to the object which is half-out from the screen, but I always get this problem (see the picture). It seems that the effect is becoming more round on the screen border and snaps to the canvas edge. I got the same result with other effects (like blur) too.
Do you have any solution?
Thank you for replies, Hanika

Does the glow also completely disappear as soon as the figure leaves the canvas? I think they never fixed that bug and it’s big.