You can sometimes improve camera-shake blur, but results depend heavily on the image.

On Windows, two options mentioned were:

• Photoshop CC’s Shake Reduction filter
• Blurity

Photoshop’s Shake Reduction can work well, especially when the image is reasonably well lit, has low noise, and shows blur from camera motion in a mostly static scene. Adobe notes it tends to work best on still images, including indoor shots taken at slow shutter speeds and images made with longer focal lengths.

Blurity was also suggested and can help if you can estimate the blur trail from point lights or similar details.

That said, severe blur, heavy JPEG artifacts, low-light noise, or complex/non-uniform motion can limit how much detail can be recovered. In those cases, software may only give a modest improvement rather than a truly sharp result.

So yes—try deblurring software, but set expectations carefully. Prevention is still the best fix: use more light, a faster shutter speed, steadier handholding, or better camera support to avoid shake in the first place.