Based off the official image below furthest part forward of his boot looks further ahead than the outside of his arm to me. You don't need to be leaning for that to be the case.
Regardless, the image doesn't show where they drew the line from on Jota anyway. It's only showing the defensive line because they overlapped (i.e. it was within the M.O.E.)
I have a couple of issues with this image. First is that the camera angle isn't in line with play and coming from an angle. Second is that we have no line for Jota as it appears his arm is further ahead than his foot in this image, but it appears they're playing it from his foot, unlike the Forest player. Third is that the line of the Forest player is outside of his arm.
Now, I don't want to get into tin hat theories, but what I would say is that VAR shouldn't be used if these are the angles being used for it. Therefore, as the goal was given by the lino, I will go with it. If it had been disallowed then given, I would've had more issue with it.
That said, looking at this and then the Lukaku one against them in the final, can anyone tell me the real difference in where Jota's arm/shoulder is and his? I ask as one thing I would say with the Dippers is that they seem to get a lot of 50/50's in their favour. Off the top of my head, they've had the following in the past few games:
1) No red card for Keita, due to 'both feet being high' even though he followed through and endangered a player.
2) Lukaku offside vs this one
3) The call for a foul on TAA when Inter had a break. This one was actually the most ridiculous.
There are probably others but those are what I remember; not going to count the pen yesterday as the player dragged his foot and I would be a hypocrite if I said that was a foul (although will point this out if a similar decision is given to someone else in the future.)
So anyway, yeah, all these calls are boardline, however all seem to go in their favour.