One could use a similar approach i took when i tried to determine wheelbases a few years back to get ratios between the wheelbase and the cockpit/driver position, could also do that for the wheelbases in general using known lengths as reference ... it would give a decent enough result to verify it one way or the other and to check whether the cockpit was moved from the W13 to the W14 where the W13 was at the max. wheelbase allowed (judging by the markings in their pits in testing).
I basically go to the centreline of the car by estimating the axle on both wheels, half distance -> middle of the car, so there's very little error when marking something like the front end of the halo or the airbox intake.
I got ~0,19 for the ratio (front axle to forwardmost point on the halo)/wheelbase and ~0,48 for (airbox intake to front axle)/wheelbase for both the W13 and W14.
In pixels that was
W13: 229/1202 and 580/1202
W14: 219/1147 and 550/1147
Based on that i'd say that the positioning of the tub is the same or at least very very similar to last year, as the differences in the result are easily within the margin of error (and a change of something like 5cm would be the equivalent of ~16 pixels)