Wine Country Hybrid Shooter did some interesting comparisons between the Fujifilm X-T4 and Sony a7RIV in full-frame and crop mode. They are far from scientific, but it is interesting that the crop mode of the Sony a7RIV matches the X-T4 26MP sensor.
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Fujifilm X-T4: B&H Photo / Amazon / Adorama
VG-XT4 Vertical Battery Grip: B&H Photo / Amazon / Adorama
NP-W235 Battery: B&H Photo / Amazon / Adorama
Fujifilm BC-W235 Dual Battery Charger: B&H Photo / Amazon / Adorama
Sony a7RIV: B&H Photo / Amazon / Adorama