How FHD high frame rate modes are sampled:
Up to 120P:
Horizontal 4832 pixels are readout in full, vertical 2718 pixels are 2/3 line-skipped and then 1/2 binned to 906 pixels.
Up to 240P:
Horizontal 4832 pixels are readout in full, vertical 2718 pixels are 3/5 line-skipped to 542 pixels.
Those IBIS shots looked great because it was shot with a 35mm lens. The IBIS corner wobble artifacts are more pronounced in wider focal lengths, such as the 16mm lens used in many of the X-T4 reviews.
Due to X-Trans, different editing tools yield different results, Lightroom has been criticised heavily for soft and mushy results demosaicing X-Trans files, hence many prefer Capture One.
IBIS warping (especially in corners, with wide angle) is a known phenomenon in all IBIS capable cameras, electronic IS exhibits a different kind of warping.
https://diglloyd.com/blog/2015/20150823_0800-SonyA7R_II-IBIS.html
Well the H.264/HEVC will definitely be softer, due to downscaling (we don't know what algorithm Fuji uses to downscale 6K), 4:2:0 colour sampling (vs. JPEG 4:2:2) and higher compression ratio.
That's just your stereotype and bias.
Made in Japan X-Pro 3 had some serious QC issue: https://***URL removed***/forums/thread/4465821
Can I jump into conclusion that "made in Japan" has now become complete crap?
X-T4 are made in both China and Japan.
No.
Also, the VG-XT4 battery grip has removed the DC input for stand-alone charging, but it can now be charged with the USB-C connection when attached to the camera body (up to three batteries at the same time)
This is going to be controversial, Fujifilm removed headphone jack on the X-T4 body and put it on the grip instead (next to the pull tab), if you wanna use headphone with the body only, you might need USB-C adapter.
The top sub-display, like X-H1, isn't e-ink, it's a transflective matrix LCD.
https://www.sharpsma.com/products?sharpCategory=Memory LCD&sharpProductRecordId=1504572
If it bins like that, it doesn't sound good in marketing material.
GFX100 reads the full width of the sensor at 11604 pixel, and vertically 2/3 subsamples from 6528 to 4352. The downsamples to 4K. So technically it oversamples.
Because GFX100 heavily line-skips and bins when shooting 4K, the image exhibits quite a bit of moire and aliasing. Shame Fuji didn't implement the 3x3 RGB binning for a more organic, soft but detailed 4K image.