I Currently Use Both and They Are my Workhorses.
I switched from Canon to Fuji X Series Cameras at the start of 2022. The X-T4 is an excellent camera and I own 3 great lenses:
XF23mmF1.4 R Lens (35mm equivalent)
XF35mmF1.4 R Lens (50mm equivalent)
XF56mmF1.2 R Lens (portrait)
The image quality is outstanding. The focus tack-sharp. The camera literally lets me focus on left or right eyes of my subjects.
What I especially Like about the X-T4 is I can flip the back screen and protect the camera as I shoot.
The Fuji X-T5 was recently released and I bought it immediately.
There are several things I really love about the X-T5:
-Built in skin-smoothing and grain. I shoot this for immediate results if a client is in a hurry. I can then transfer the image directly to the client via Bluetooth. The camera also creates a Raw version of the same file that is not altered which I can use for precise retouching later.
-40 MP files.
The one thing I wished had not changed: I can no longer flip the backscreen: