I used the Tamron lens at 300mm on the Fujifilm X-T30 II camera and then cropped the original image a little to make this view of the Red-Shouldered Hawk.

So far my evaluation of the lens-camera combination is working out OK in good light.  I wish the lens focused a little quicker but it is OK.

I have also been trying the lens indoors at ISO 12800 and 300mm at 6.3 aperture and the images are a little noisy and I will likely be down to 1/60 second shutter speed; but, I think that if I take the extra step in processing the images by running them through ON1 NoNoise AI with Tack Sharp AI that they will clean up sufficiently.